The only hope of socialism resides in those who have already brought about in themselves, as far as is possible in the society of today, that union between manual and intellectual labor which characterizes the society we are aiming at.

Modern war appears as a struggle led by all the State apparatuses and their general staffs against all men old enough to bear arms.

With no matter what human being, taken individually, I always find reasons for concluding that sorrow and misfortune do not suit him; either because he seems too mediocre for anything so great, or, on the contrary, too precious to be destroyed.

Those who love a cause are those who love the life which has to be led in order to serve it.

science has now been for a long time - and to an ever-increasing extent - a collective enterprise. Actually, new results are always, in fact, the work of specific individuals; but, save perhaps for rare exceptions, the value of any result depends on such a complex set of interrelations with past discoveries and possible future researches that even the mind of the inventor cannot embrace the whole.

Attention is the rarest and purest form of generosity.

It is not enough that France should be regarded as a country which enjoys the remains of a freedom acquired long ago. If she is still to count in the world--and if she does not intend to, she may as well perish--she must be seen by her own citizens and by all men as an ever-flowing source of liberty. There must not be a single genuine lover of freedom in the whole world who can have a valid reason for hating France.