Man is by nature a reasonable being, but animals, other than man, are by nature instruments of brute force.
The only thing that is truly valuable is the time you spend with people you love.
读经书,阅传注,就为治学打下坚实基础;看史籍,鉴古今,就使宏论滔滔切中肯綮;游山川,观壮景,就使志气凌云眼界开阔;戒嗜好,弃私欲,就使胸怀磊落一尘不染。
A man's life is limited, but service to the people is infinite.