作一年的打算,最好是种植五谷;作十年的打算,最好是种植树木;作终身的打算,最好是培育人才。
数学不是一项观赏性运动;要理解它,必须积极参与其中。
We were the people who were not in the papers. We lived in the blank white spaces at the edges of print.