种一棵树最好的时间是20年前,其次是现在。
The best time to plant a tree was 20 years ago. The second best time is now.
译文:学习不以广博为贵,贵在学得正确,说话不以漂亮动听为贵,贵在表达得当。赏析:读书求学要走正道,要有正确的学习观,不能学习旁门左道。和别人交往,说话不一定要动听,一定要正确表达,不要出口伤人。
We are all obsessed with the idea of the frontier, but it's a frontier that keeps receding.