Comets are a tougher act.

Now, the going gets tougher.

2008 and 2009 were a little tougher.

After that his life got even tougher.

And at each threshold, the going gets tougher.

Conservation's tougher, but we can probably get there.

But justice is a tougher standard than charity.

But reaching 500 million people is much, much tougher.

Yet, it's 3,000 times tougher than its geological counterpart.

It's thousands of times, maybe 3,000 times tougher than this.

It is also possible to see in the politics of both parties mounting concern about globalization. With tougher economic times inevitably come tougher positions toward foreign competition and outsourcing.

Tougher guidelines had been issued for shutting down places of prostitution.

I know that they were tougher for a lot of people, not just me.

Indeed getting up in the night is tougher, and the words flow with strength.

Indeed getting up in the night is tougher, and the words flow with strength.

So, why is the ECB set on a tougher course? There are three plausible reasons.

And polio eradication, in many ways, is even tougher, and there's a few reasons for that.

Rain the past couple of days made it even tougher to get the water color back to normal.

In Meteor Crater it was made of metal, and metal is much tougher, so it made it to the ground.

Perhaps initially Europeans should be cautious. But I doubt whether anything tougher than strongly worded communiqués will ever be employed.

In many ways, the task this year will be much tougher than it was in 2000, when the Declaration was adopted.

They produce six different types of silk, which is spun together into a fiber, tougher than any fiber humans have ever made.

We should aim to limit our management of the Secretariat to giving it broad guidelines, and in return demand transparency, accountability and tougher audits.

For the United Nations to promote prosperity more credibly, tougher ethics rules and greater internal oversight are needed to ensure the highest professional standards.

The report, being considered by Theresa May, also calls for tougher checks on registration to prevent the electoral register being used for immigration and benefit fraud.

China will work for a global consensus on climate change. The big question is whether it will be able to impose tougher environmental standards throughout the whole country.

But Osborne is back as Chancellor, promising even tougher cuts over the next five years. And fiscal austerity is still the reigning doctrine in the eurozone, thanks to Germany.

Is this a responsible use of international taxpayers money? Would the IMF not have insisted on a much tougher program, with less financing, for any country outside the eurozone?

For middle income countries, it is a tougher call. But here, too, increasing workers legal and statutory rights, while allowing most unions to fade away, seems like the right approach.

Countries are getting tougher because migration flows can be diverted across jurisdictions. This raises concerns among public opinion that migrants rejected by some countries could flood those that do not impose tighter restrictions.

Turkey s position was, to say the least, perceived badly by the Arab street. A major reason for Turkey s tougher position towards Israel, one suspects, is Erdoğan s attempt to rebalance the country s regional image.

It is in neither country's interest to be seen as the other's pawn. And a tougher US stance toward its ally might force the Israelis to try harder to come to terms with the Palestinians.

The change meant that the business model Roman Abramovich initially used at Chelsea in 2003 buy a club with potential, and then spend heavily to improve the squad and build a global brand become a tougher proposition.

The Assad regime s use of excessive force, especially the deliberate killing of thousands of mainly Sunni civilians, has nonetheless recently spurred a tougher stance. King Abdullah has called the killings unacceptable, and has withdrawn his ambassador from Damascus.

We have also undergone a communications and technological revolution that has touched every aspect of our lives. While immense new opportunities have opened up for Europe's citizens and businesses, global competition for trade and investment has never been tougher.

The school solution, agreed at the Financial Stability Board in Basel, is that global regulators should clearly identify systemically significant banks and impose tougher regulations on them, with more intensive supervision and higher capital ratios. That has been done.

The far reaching macroeconomic and political reforms of the post Cold War era also seem to have run their course. The easy gains have already been banked any further structural change will take longer to agree and be tougher to implement.

The demise of compromise and collegiality in domestic politics has raised new challenges in America s interaction with others as well. Foreign policy debate in the US has become a proxy for who is tougher, which does not necessarily mean wiser.

Tougher economic sanctions will not force Iran to comply instead, sanctions will merely hit this oil and gas rich country s trading partners. More threats will only push the international community further along the spiral of escalation and, possibly, into military action.

But Obama also knows that if the existing nuclear states want others to accept tougher restrictions, they will have to cut back their nuclear arsenals. This is principally an issue for the US and Russia, which possess 95 of the world s nuclear weapons.

Yet the IMF imposed even tougher conditions on Asia than it has on Greece, including fiscal austerity, monetary tightening, and financial restructuring. Some of these requirements were clearly unnecessary, as evidenced by Malaysia, which recovered quickly from the crisis without IMF assistance.

Pruitt in June had announced the EPA's intention to delay the ozone designations in which existing smog pollution is measured in parts of the country to determine where cuts must be made to meet tougher air quality standard by one year to October 2018.

There is a further reason why deflation is such a threat, and why policymakers setting out to eliminate it have a much tougher task than inflation fighters all prices do not move down in particular debts do not adjust because they are fixed in nominal terms.

That s why I have proposed much tougher measures in the revised Capital Requirements Directive amendments now being considered by the European Parliament. This will require thorough independent due diligence on securitizations, proper cash flow sensitivity analysis, and less reliance on credit rating agencies paid by issuers.

Businesses that ignore the broader social and environmental context in which they operate are likely to pay a price reputational damage and loss of brand value, falling sales, difficulties in recruiting talent, lower worker productivity, corruption, tougher government regulation, or an increase in climate change related costs.