“Emergencies have always been necessary to progress. It was darkness which produced the lamp. It was fog that produced the compass. It was hunger that drove us to exploration. And it took a depression to teach us the real value of a job.”

“Teach the ignorant as much as you can; society is culpable in not providing a free education for all and it must answer for the night which it produces. If the soul is left in darkness sins will be committed. The guilty one is not he who commits the sin, but he who causes the darkness.”

“Do what we may to shape the mysterious stuff of which our lives are composed, the dark threads of our destiny will always re-emerge.”

“First problem. To produce wealth. Second problem. To distribute it.”

“We all know the artfulness with which a dropped coin hides itself, and the job we have to find it again. There are thoughts which play the same trick on us, rolling into a buried corner of our minds; and there it is, they've gone forever, we can't put our finger on them.”

“Let us study things that are no more. It is necessary to understand them, if only to avoid them.”

“That evening, before he went to bed, he said again: "Let us never fear robbers nor murderers. Those are dangers from without, petty dangers. Let us fear ourselves. Prejudices are the real robbers; vices are the real murderers. The great dangers lie within ourselves. What matters it what threatens our head or our purse! Let us think only of that which threatens our soul.”