The originator of a new concept...finds, as a rule, that it is much more difficult to find out why other people do not understand him, than it was to discover the new truth.

A metaphysical conclusion is either a false conclusion or a concealed experimental conclusion.

I then endeavoured to show that it is more especially in the thorough conformity with law which natural phenomena and natural products exhibit, and in the comparative ease with which laws can be stated, that this difference exists.

Isolated facts and experiments have in themselves no value, however great their number may be. They only become valuable in a theoretical or practical point of view when they make us acquainted with the law of a series of uniformly recurring phenomena, or, it may be, only give a negative result showing an incompleteness in our knowledge of such a law, till then held to be perfect.

What we see is the solution to a computational problem, our brains compute the most likely causes from the photon absorptions within our eyes.

The smallest quantity of alcohol scares away novel ideas.

Music stands in a much closer connection with pure sensation than any of the other arts.