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.

It is by acts, and not by ideas that people live.

It is by acts, and not by ideas that people live.

Religion has caused more harm than any other idea since the beginning of time. There's nothing good I can say read more

Religion has caused more harm than any other idea since the beginning of time. There's nothing good I can say about it. People use it as a crutch.

Good ideas are common - what's uncommon are people who'll work hard enough to bring them about

Good ideas are common - what's uncommon are people who'll work hard enough to bring them about

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.

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.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

The most powerful factors in the world are clear ideas in the minds of energetic men of good will.

The most powerful factors in the world are clear ideas in the minds of energetic men of good will.

To have a great idea, have a lot of them.

To have a great idea, have a lot of them.