We should try to be the parents of our future rather than the offspring of our past.

Dream abides; it is the only things that abides; vision abides.

If a person never contradicts himself, it must be that he says nothing.

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?

Our life is a hope which is continually converting itself into memory and memory in its turn begets hope.

Hell has been conceived as a police institution, to inspire fear in this world. But the worst of it all is that it no longer frightens anyone, and therefore it will have to be closed down.

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