To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.
To live is to leave traces, and poetry is the most enduring of them all.
出自先秦《荀子·儒效》。对于所知道的东西就说知道,不知道的就说不知道;这样,对内是不欺骗自己的良心,对外是不欺骗他人。说明为人应当诚实的道理。