Life is not an easy matter. . . . You cannot live through it without falling into frustration and cynicism unless you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness.
The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life, for only then do they have to fall back on their reserves.
Old age is the most unexpected of all things that happen to a man.
There is a limit to the application of democratic methods. You can inquire of all the passengers as to what type of car they like to ride in, but it is impossible to question them as to whether to apply the brakes when the train is at full speed and accident threatens.
The end may justify the means as long as there is something that justifies the end.
The historic ascent of humanity, taken as a whole, may be summarized as a succession of victories of consciousness over blind forces--in nature, in society, in man himself.
Ideas that enter the mind under fire remain there securely and for ever.
Learning carries within itself certain dangers because out of necessity one has to learn from one's enemies.
Insurrection is an art, and like all arts has its own laws.
In a serious struggle there is no worse cruelty than to be magnanimous at an inopportune time.
Technique is noticed most markedly in the case of those who have not mastered it.