It'd be nice to learn enough from each mistake that we'd be guaranteed to never repeat that same mistake twice. But, how many times have you said, 'I'll never do that again,' only to find yourself right back at it a few days later. Learning from our mistakes requires humility and a willingness to look for new strategies to become better.

Amy Morin

The work requires a moderately large investment in technological and theoretical developments and long periods of time to carry them out, without the pressure to achieve quick or short term results.

Aaron Klug

Prayer requires more of the heart than of the tongue.

Adam Clarke

If the courts regarded tweets and other social media information as private, it would not prevent the law enforcement from getting information it really needs. But the government would have to get a search warrant, which requires it to show that it has probable cause connecting what is being searched to a crime.

Adam Cohen

Bouldering on real rock, which I'm more used to climbing on, is a lot more static and requires mostly finger power, whereas competition-style boulder problems are about coordination.

Adam Ondra

I have trained with expert sprinters many times and they all agree running with the ball and running without the ball requires two completely different techniques.

Adama Traore

I like a grizzly look as long as it's maintained. Facial hair requires maintenance; you can't just grow it out and be done with it.

Adrianne Palicki

Happiness is a choice that requires effort at times.

Aeschylus

A secure pluralistic society requires communities that are educated and confident both in the identity and depth of their own traditions and in those of their neighbours.

Aga Khan IV

To handle the economy and services in a country like Iraq requires delegation of authority and the choice of competent people.

Ahmed Chalabi

Next-generation networks are hard to build. It takes a lot of money and effort to lay fiber, install wireless infrastructure, build satellite earth stations, and more. It also requires a reasonably certain business case for deployment, which is all too often hard to prove in parts of the country with sparse population and/or lower incomes.

Ajit Pai

CO2 is the exhaling breath of our civilization, literally... Changing that pattern requires a scope, a scale, a speed of change that is beyond what we have done in the past.

Al Gore

Diversity requires commitment. Achieving the superior performance diversity can produce needs further action - most notably, a commitment to develop a culture of inclusion. People do not just need to be different, they need to be fully involved and feel their voices are heard.

Alain Dehaze

Marriage requires searing honesty at all costs. I learned that from my third wife.

Alan Arkin

Leadership requires the courage to make decisions that will benefit the next generation.

Alan Autry

In fact, even the perception of a resurgence in crime can be enough to paralyze business momentum and destroy the sense of security that a vibrant and progressive city requires.

Alan Autry

I think it's very difficult, and it requires a tremendous amount of spiritual integrity and discipline, to not be a narcissist in a culture that encourages it every step of the way.

Alan Ball

For most people, the question why be good - as distinguished from merely law abiding - is a simple one. Because God commands it, because the Bible requires it, because good people go to Heaven and bad people go to Hell.

Alan Dershowitz

The Singaporean government, which represents legal migrant workers in employment disputes and claims of exploitation, requires that they stay in the country until the disputes are settled. If they leave, their claims are closed.

Alan Huffman

Social thinking requires very exacting thresholds to be powerful. For example, we've had social thinking for 200,000 years, and hardly anything happened that could be considered progress over most of that time. This is because what is most pervasive about social thinking is 'how to get along and mutually cope.'

Alan Kay

Science requires a society because even people who are trying to be good thinkers love their own thoughts and theories - much of the debugging has to be done by others.

Alan Kay