The ego is as little absolutely permanent as are bodies.
Ernst Mach

Personally, people know themselves very poorly.
Ernst Mach

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

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

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.
Ernst Mach

The plain man is familiar with blindness and deafness, and knows from his everyday experience that the look of things is influenced by his senses; but it never occurs to him to regard the whole world as the creation of his senses.
Ernst Mach

When I recall today my early youth, I should take the boy that I then was, with the exception of a few individual features, for a different person, were it not for the existence of the chain of memories.
Ernst Mach

A movement that we will to execute is never more than a represented movement, and appears in a different domain from that of the executed movement, which always takes place when the image is vivid enough.
Ernst Mach