黄河尚有澄清日，岂可人无得运时？
人生起落无常，低谷时别放弃。
The market is a reflection of the collective psychology of all participants.
I’m not perfect, and I don’t pretend to be.
The best films are the ones that make you think.
教学的艺术不在于传授本领，而在于激励、唤醒和鼓舞。