I swear to you gentlemen, that to be overly conscious is a sickness, a real, thorough sickness.

What do you think, would not one tiny crime be wiped out by thousands of good deeds?

My friends, God is necessary for me if only because he is the one being who can be loved eternally.

To strive consciously for an object and to engage in engineering -- that is, incessantly and eternally to make new roads, wherever they may lead.

And though I suffer for you, yet it eases my heart to suffer for you.

. . . finally, I couldn't imagine how I could live without books, and I stopped dreaming about marrying that Chinese prince. . . .

If you wish to glimpse inside a human soul and get to know a man ... just watch him laugh. If he laughs well, he's a good man.