No decision is, in itself, a decision.

Our volitional habits depend, then, first, on what the stock of ideas is which we have; and, second, on the habitual coupling of the several ideas with action or inaction respectively.

To consider hypotheses is surely always better than to dogmatize ins blaue hinein

...By far the most usual way of handling phenomena so novel that they would make for a serious rearrangement of our preconceptions is to ignore them altogether, or to abuse those who bear witness for them.

Truth is what will be steadily borne out by subsequent experience

A new idea is first condemned as ridiculous and then dismissed as trivial, until finally, it becomes what everybody knows.

The self-same atoms which, chaotically dispersed, made the nebula, now, jammed and temporarily caught in peculiar positions, form our brains; and the 'evolution' of brains, if understood, would be simply the account of how the atoms came to be so caught and jammed.