存养宜冲粹，近春温；省察宜谨严，近秋肃。
存心养性要谦抑专一，如春天般的舒缓温和；自察反省要谨慎严格，像秋天般冷峻严肃。
Understanding is the foundation of all wisdom.
未来的答案埋藏在过去中。
"The aim of life is self-development. To realize one's nature perfectly—that is what each of us is here for."
All the great things are simple， and many can be expressed in a single word： freedom， justice， honor， duty， mercy， hope.
The unity of mathematics is not imposed but discovered.
历史是一场我试图醒来的噩梦。