One must never have spared oneself, one must have acquired hardness as a habit to be cheerful and in good spirits in the midst of nothing but hard truths.
I feel not only that I cannot disappear, as nothing disappears in the world, but that I will always be and have always been. I feel that, besides me, above me, spirits live, and that in this world there is truth.
Overemphasis of the competitive system and premature specialization on the ground of immediate usefulness kill the spirit on which all cultural life depends, specialized knowledge included.