Yesterday is but today's memory and tomorrow is today's dream.

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

Instinct is a marvellous thing. It can neither be explained nor ignored.

I know I am but mortal and so therewhilst prepare myself for death, whensoever it shall please God to send it.

Adapt what is useful, reject what is useless, and add what is specifically your own.

I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.

When you dance, your purpose is not to get to a certain place on the floor. It's to enjoy each step along the way.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

Language is very powerful. Language does not just describe reality. Language creates the reality it describes.

Every aquarium will eventually leak.

Experience keeps a dear school, but fools will learn in no other.

It is not titles that honor men, but men that honor titles.

I dream. Sometimes I think that's the only right thing to do.

If you don't know where you're from, you'll have a hard time saying where you're going.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Beauty is not in the face; beauty is a light in the heart.

Chaos is a name for any order that produces confusion in our minds.

Great acts are made up of small deeds.

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

To do great things is difficult, but to command great things is more difficult.