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

After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it.

The true test of a man's character is what he does when no one is watching.

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

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

Nothing is black or white.

There's nothing in the world so demoralizing as money.

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

We often discover what will do by finding out what will not do; and probably he who never made a mistake never made a discovery.

If you follow every dream, you might get lost.

Few men have virtue to withstand the highest bidder.

Anyone who attempts to generate random numbers by deterministic means is, of course, living in a state of sin.

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

The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic

No flying machine will ever fly from New York to Paris.

Thought is free.

The lifestyle I`ve been living for the last 30 years, I could have been dead a thousand times.

Tomorrow is the most important thing in life. Comes into us at midnight very clean. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday.

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

It seldom happens that any felicity comes so pure as not to be tempered and allayed by some mixture of sorrow.

The English contribution to world cuisine - the chip.