Those thoughts are truth which guide us to beneficial interaction with sensible particulars as they occur, whether they copy these in advance or not.

A little cooling down of animal excitability and instinct, a little loss of animal toughness, a little irritable weakness and descent of the pain-threshold, will bring the worm at the core of all our usual springs of delight into full view, and turn us into melancholy metaphysicians.

Our colleges ought to have lit up in us a lasting relish for a better kind of man, a loss of appetite for mediocrities.

My experience is what I agree to attend to.

Genius... means little more than the faculty of perceiving in an unhabitual way.

Round about the accredited and orderly facts of every science there ever floats a sort of dust-cloud of exceptional observations, of occurrences minute and irregular and seldom met with, which it always proves more easy to ignore than to attend to... Anyone will renovate his science who will steadily look after the irregular phenomena, and when science is renewed, its new formulas often have more of the voice of the exceptions in them than of what were supposed to be the rules.

The whole drift of my education goes to persuade me that the world of our present consciousness is only one out of many worlds of consciousness that exist.