If you can’t explain it to a six year old, you don’t understand it yourself.

I don’t care that they stole my idea… I care that they don’t have any of their own.

If you tell the truth, you don’t have to remember anything.

If your hate could be turned into electricity, it would light up the whole world.

Be alone, that is the secret of invention; be alone, that is when ideas are born.

Falling in love is not at all the most stupid thing that people do — but gravitation cannot be held responsible for it.

Be yourself; everyone else is already taken.

There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.

Never love anyone who treats you like you’re ordinary.

Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.

Promise me you’ll always remember: You’re braver than you believe, and stronger than you seem, and smarter than you think.

Logic will get you from A to Z; imagination will get you everywhere.