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.

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.

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.

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

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

It is better to entertain an idea than to take it home to live
with you for the rest read more

It is better to entertain an idea than to take it home to live
with you for the rest of your life.

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.

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.

A person with a new idea is a crank until the idea succeeds.

A person with a new idea is a crank until the idea succeeds.