We must always question our assumptions and be willing to revise our theories in light of new evidence.
我们必须始终质疑我们的假设,并愿意根据新的证据修订我们的理论。
【译文】力气单薄就不要去背负重物,说话没分量就不要规劝别人。没有钱就不要到人群中去,遇到危难千万别去求亲戚。
The best teacher in life is experience.
The heart of animals is the foundation of their life, the sovereign of everything within them.