Yes, yes, I see it all! — an enormous social activity, a mighty civilization, a profuseness of science, of art, of industry, of morality, and afterwords, when we have filled the world with industrial marvels, with great factories, with roads, museums and libraries, we shall fall exhausted at the foot of it all, and it will subsist — for whom? Was man made for science or was science made for man?

Cure yourself of the inclination to bother about how you look to other people. Be concerned only . . . with the idea God has of you.

Man dies of cold, not of darkness.

A lot of good arguments are spoiled by some fool who knows what he is talking about.

What we believe to be the motives of our conduct are usually but the pretexts for it.

Was man made for science, or was science made for man?

Human beliefs, like all other natural growths, elude the barrier of systems.