To be is to be perceived (Esse est percipi)." Or, "If a tree falls in the forest and no one is there to hear it, does it make a sound?

All the choir of heaven and furniture of earth - in a word, all those bodies which compose the frame of the world - have not any subsistence without a mind.

Truth is the cry of all, but the game of few.

It is impossible that a man who is false to his friends and neighbours should be true to the public.

Few men think, yet all will have opinions.

The world is like a board with holes in it, and the square men have got into the round holes, and the round into the square.

I had rather be an oyster than a man, the most stupid and senseless of animals.

That thing of hell and eternal punishment is the most absurd, as well as the most disagreeable thought that ever entered into the head of mortal man.

A ray of imagination or of wisdom may enlighten the universe, and glow into remotest centuries.

So long as I confine my thoughts to my own ideas divested of words, I do not see how I can be easily mistaken.

Where the people are well educated, the art of piloting a state is best learned from the writings of Plato.

Everyone suffers at least one bad betrayal in their lifetime. It’s what unites us. The trick is not to let it destroy your trust in others when that happens. Don’t let them take that from you.

Creativity is a renewable resource.

Family is this very deep, complex thing that for most people becomes everything. It informs your entire life.

I am acutely aware of the fact that the marriage between mathematics and physics, which was so enormously fruitful in past centuries, has recently ended in divorce.

I've always thought that the role of citizen, the role of advocate, were as important in our democracy as running for office.

The animal frame, though destined to fulfill so many other ends, is as a machine more perfect than the best contrived steam-engine-that is, is capable of more work with the same expenditure of fuel.

When a major airline goes on a route that a new entrant has gone into, reduces fares, increases capacity, and then when the new entrant goes off, they leave the route, that's not competition.

Hitchcock's murder set-pieces are so potent, they can galvanize (and frighten) even a viewer who's seen them before!

Nature, like a kind and smiling mother, lends herself to our dreams and cherishes our fancies.

Lost in a haunted wood, Children afraid of the night Who have never been happy or good.