The ego is as little absolutely permanent as are bodies.

Thing, body, matter, are nothing apart from the combinations of the elements, - the colours, sounds, and so forth - nothing apart from their so-called attributes.

A colour is a physical object as soon as we consider its dependence, for instance, upon its luminous source, upon other colours, upon temperatures, upon spaces, and so forth.

Strange as it may sound, the power of mathematics rests on its evasion of all unnecessary thought and on its wonderful saving of mental operations.

Science is the most complete presentment of facts with the least expenditure of thought

I can accept the theory of relativity as little as I can accept the existence of atoms and other such dogmas.

Man is pre-eminently endowed with the power of voluntarily and consciously determining his own point of view.

What Mach calls a thought experiment is of course not an experiment at all. At bottom it is a grammatical investigation.

Many an article that I myself penned twenty years ago impresses me now as something quite foreign to myself.

Science always has its origin in the adaptation of thought to some definite field of experience.

Bodies do not produce sensations, but complexes of elements (complexes of sensations) make up bodies.

We hope for what we long to have.

Words can be said but it's the attitude that defines their value. Attitude is the anchor of every word we say or everything we do.

A speculator is a man who observes the future, and acts before it occurs.

I don't think there's anything wrong being a dreamer.

Some people that don't see it as palatable, they shouldn't watch boxing.

Despotic governments can stand 'moral force' till the cows come home; what they fear is physical force.

My daughter was asked by a little old lady in a London hotel restaurant what her daddy did. She answered, “He’s a pirate” - I was very proud of that answer.

Freeing Your Child from Anxiety is an excellent book, one of the best of its kind.

I like to speak on matters which matter to human beings, and almost everything matters to human beings.

Learning from the best, you will eventually become the best if you have the talent already, if you have that potential.