Thought experiment is in any case a necessary precondition for physical experiment. Every experimenter and inventor must have the planned arrangement in his head before translating it into fact.

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.

To become a better you, secure your dreams from the jaws of people who discredit your ambitions.

Sages tell us that the Torah tells us that until the age of thirteen, all of boy's sins are ascribed to his father.

The ones who want to achieve and win championships motivate themselves.

Winners accept responsibility because acceptance of responsibility nullifies excuses.

I want to show the world my humor.

I'm a pessimist by nature. A pot head, but a pessimist.

He warmes too neere that burnes.

Fear of failure is at least as common as the desire for success. In fact, if harnessed properly, it can be the energy that drives the wheel.

The state we call realization is simply being oneself, not knowing anything or becoming anything.

I'm much more comfortable and confident running out on the field in front of 70,000 people instead of standing in front of a camera trying to say some lines.