挑战在于让不可见的东西变得可见。
The challenge is to make the invisible visible.
The greatest glory is not in never falling, but in rising every time we fall.
我不喜欢被指挥。
Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people will die tomorrow night and won't see the sun of the day after tomorrow.
解释：明智的人不违背时机而放弃有利的行动，勇士不回避死亡而埋没名声，忠臣不先顾及自己后顾及国君。
A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.