我不习惯安逸。只有在不舒适的时候我才感到舒适。
I'm not comfortable with comfort. I'm only comfortable when I'm uncomfortable.
科学是个美妙的东西——如果无须靠它维生的话。
The changes in our life must come from the impossibility to live otherwise than according to the demands of our conscience.
The soul is created in a place between time and eternity: with its highest powers it touches eternity, with its lower time.
The true teacher defends his pupils against his own personal influence. He inspires self-distrust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.