Obviousness is always the enemy of correctness.

More cranks take up unfashionable errors than unfashionable truths.

I often long to . . . give up my life to love of my neighbour. This is really a temptation.

The finding of arguments for a conclusion given in advance is not philosophy, but special pleading

Science can teach us, and I think our hearts can teach us, no longer to look around for imaginary supporters, no longer to invent allies in the sky, but rather to look to our own efforts here below to make the world a fit place to live.

Affection cannot be created; it can only be liberated.

The true function of logic ... as applied to matters of experience ... is analytic rather than constructive; taken a priori, it shows the possibility of hitherto unsuspected alternatives more often than the impossibility of alternatives which seemed prima facie possible. Thus, while it liberates imagination as to what the world may be, it refuses to legislate as to what the world is