One's life has value so long as one attributes value to the life of others, by means of love, friendship, indignation and compassion.
Life is occupied in both perpetuating itself and in surpassing itself; if all it does is maintain itself, then living is only not dying.
It is not in giving life but in risking life that man is raised above the animal; that is why superiority has been accorded in humanity not to the sex that brings forth but to that which kills.
It is in the knowledge of the genuine conditions of our lives that we must draw our strength to live and our reasons for living.