In business, as in life, you have to take risks to achieve great things.

教学应始终适应学生的发展阶段。

"La vida es un laberinto en el que a veces nos perdemos, pero siempre encontramos el camino de regreso."

If you borrow something， try to return it in better shape than you received it. Clean it， sharpen it， fill it up.

共同体是人类身份的直接、即时和全面的对抗。

"The only real progress lies in learning to be wrong all alone."