君子重视自身的努力，而不羡慕上天的恩赐；小人放弃自身的努力，而羡慕上天的恩赐。
The light of reason is different from the light of nature.
Nothing that you remember has survived. Better to forget.
谷物种植既是一门艺术也是一门科学——既需要直觉也需要数据。