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

Patriotism is usually stronger than class hatred, and always stronger than internationalism.

An original idea. That can't be too hard. The library must be full of them.

Boards don't hit back.

Extraordinary claims require extraordinary evidence.

If you've got them by the balls their hearts and minds will follow.

Don't take the wrong side of an argument just because your opponent has taken the right side.

Pain is inevitable. Suffering is optional.

You're only given a little spark of madness. You mustn't lose it.

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

In order to be irreplaceable, one must always be different.

At the heart of all beauty lies something inhuman.

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

Dare to risk public criticism.

Do it again on the next verse, and people think you meant it.

Time is an illusion. Lunchtime doubly so.

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

It's sad when someone you know becomes someone you knew.

Never accept a drink from a urologist.

The cloud is free only to go with the wind. The rain is free only in falling.

Society is now one polished horde, Formed of two mighty tribes, The Bores and the Bored.