A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.

The causal model is the key to making sense of the world.

当今天下的士人君子,内心果真想行仁义之道,做上等的贤士,上要符合圣王之道,下要符合国家与百姓的利益。