Keep the faculty of effort alive in you by a little gratuitous exercise every day.

We, the lineal representatives of the successful enactors of one scene of slaughter after another, must, whatever more pacific virtues we may also possess, still carry about with us, ready at any moment to burst into flame, the smoldering and sinister traits of character by means of which they lived through so many massacres, harming others, but themselves unharmed.

An experience, perceptual or conceptual, must conform to reality in order to be true

We believe as much as we can. We would believe everything if we could.

An educated memory depends on an organized system of associations; and its goodness depends on two of their peculiarities: first, on the persistency of the associations; and, second, on their number.

One of the greatest discoveries of our time is that a man can alter the state of their life by altering the state of their mind.

Truths emerge from facts, but they dip forward into facts again and add to them; which facts again create or reveal new truth (the word is indifferent) and so on indefinitely. The 'facts' themselves meanwhile are not true. They simply are. Truth is the function of the beliefs that start and terminate among them.