If only we could lean over the soul we love and see as in a mirror the image we cast!
It is not becoming to lay to virtue the weariness of old age.
Complete possession is proved only by giving. All you are unable to give possesses you.
If one could recover the uncompromising spirit of one's youth, one's greatest indignation would be for what one has become.
No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond.
The most decisive actions of our life - I mean those that are most likely to decide the whole course of our future - are, more often than not, unconsidered.