I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

What we need is hatred. From it our ideas are born.

What we need is hatred. From it our ideas are born.

An invasion of armies can be resisted, but not an idea whose time has come.

An invasion of armies can be resisted, but not an idea whose time has come.

Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in read more

Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living.

Often the difference between a successful person and a failure is not one has better abilities or ideas, but the read more

Often the difference between a successful person and a failure is not one has better abilities or ideas, but the courage that one has to bet on one's ideas, to take a calculated risk - and to act.

It is not once nor twice but times without number that the same
ideas make their appearance in the read more

It is not once nor twice but times without number that the same
ideas make their appearance in the world.

All great ideas are dangerous.

All great ideas are dangerous.

When ideas fail, words come in very handy.

When ideas fail, words come in very handy.

You ask me if I keep a notebook to record my great ideas. I've
only ever had one.

You ask me if I keep a notebook to record my great ideas. I've
only ever had one.