When you lead, your real job is to create more leaders, not more followers.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
"The most ordinary lives can contain extraordinary stories."
数学不是一项观赏性运动;要理解它,必须积极参与其中。
The most advanced agricultural systems still depend on the most fundamental element: healthy soil.