I believe that the U.S. can and should be a global leader in the development of alternative energy sources.

You can’t let your failures define you. You have to let your failures teach you.

Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

When ignorant folks want to advertise their ignorance, you don't really have to do anything, you just let them talk.

Just because we have the best hammer does not mean that every problem is a nail.

Change is never easy, but always possible.

Don’t ever let anybody tell you that your efforts don’t matter or that your voice doesn’t count. Don’t ever believe that you can’t make a difference. You have.

Where you are right now doesn't have to determine where you'll end up.

Learning to stand in somebody else's shoes, to see through their eyes, that's how peace begins. And it's up to you to make that happen. Empathy is a quality of character that can change the world.

If somebody is different from you, that's not something you criticize, that's something that you appreciate.

I suppose we all have our little hiding-hole if the truth was known, but as small as it is, the whole world is in it, and bit by bit grows on us again till the day You find us out.

The essential reason for my loneliness is that I don't even know where I belong.

As sometimes happens with men who wish to fight but do not or cannot, Reagan developed a romantic image of the military.

I recall my mum tried to teach me how to fry chicken once, and I almost burned down half the kitchen... I don't think I have the patience for cooking.

Let's face it, space is a risky business. I always considered every launch a barely controlled explosion.

Night will always be a time of fear and insecurity, and the heart will sink with the sun.

A man, after he has brushed off the dust and chips of his life, will have left only the hard, clean question: Was it good or was it evil? Have I done well - or ill?

For tribal man, space was the uncontrollable mystery. For technological man it is time that occupies the same role.

India is the Saudi Arabia of 21st century.

If your children don't fight, they won't love each other when they get older! It's a common thing.