——《致郑藻如书》(1890年)
The only way to discover the limits of the possible is to go beyond them into the impossible.
Critical comments by students should be taken in a friendly spirit, accumulation of material should not stifle the student’s independence.
我喜欢狗。你总是知道狗在想什么。它有四种情绪。快乐、悲伤、生气和专注。