How lucky I am to have something that makes saying goodbye so hard.

Pain is inevitable. Suffering is optional.

Three may keep a secret, if two of them are dead.

Courage is not simply one of the virtues, but the form of every virtue at the testing point.

We all live with the objective of being happy; our lives are all different and yet the same.

We are all worms, but I do believe that I am a glow-worm.

I've been looking for a girl like you - not you, but a girl like you.

A scientific man ought to have no wishes, no affections, - a mere heart of stone.

Anger makes dull men witty, but it keeps them poor.

Parents can only give good advice or put them on the right paths, but the final forming of a person's character lies in their own hands

The right of a nation to kill a tyrant in case of necessity can no more be doubted than to hang a robber, or kill a flea.

New opinions are always suspected, and usually opposed, without any other reason but because they are not common.

I apologize for lying to you. I promise I won't deceive you except in matters of this sort.

I love deadlines. I like the whooshing sound they make as they fly by.

Animals, whom we have made our slaves, we do not like to consider our equal.

Experience without theory is blind, but theory without experience is mere intellectual play.

You don't have to be the Dalai Lama to tell people that life's about change.

Deep in the human unconscious is a pervasive need for a logical universe that makes sense. But the real universe is always one step beyond logic.

I've got a woman's ability to stick to a job and get on with it when everyone else walks off and leaves it.

To the young people I say, you are a gift to your communities and indeed the world. You are our hope and our future.

You’ll miss the best things if you keep your eyes shut.