Call Quote by Nikola Tesla

As you are aware, no perceptions obtained by the senses are merely sensations impressed on our nervous systems. A peculiar intellectual activity is required…

— Hermann von Helmholtz

Conceptions are artificial. Perceptions are essential.

— Wallace Stevens

In all sensation we pick and choose, interpret, seek and impose order, and devise and test hypotheses about what we witness. Sense data are…

— Peter Medawar

Knowledge is the true organ of sight not the eyes

— Jared Diamond

The sense organs, which are limited in scope and ability, randomly gather information. This partial information is arranged into judgments, which are based on…

— Laozi

The centermost processes of the brain with which consciousness is presumably associated are simply not understood. They are so far beyond our comprehension that…

— Roger Wolcott Sperry

The brain is the citadel of sense perception.

— Pliny the Elder

An object is frequently not seen, from not knowing how to see it, rather than from any defect of the organ of vision.

— Charles Babbage

the senses alone are not implicitly to be depended on. We must correct their evidence by reason, and by considerations, derived from the nature…

— David Hume

there are other senses -­ secret senses, sixth senses, if you will -­ equally vital, but unrecognized, and unlauded.

— Oliver Sacks

Sensations are nothing but confused modes of thinking.

— Rene Descartes

Most people who've never experienced non-ordinary states of consciousness and only hear them described tend to try to describe them in terms of the…

— Fred Alan Wolf