种树的最佳时间是二十年前，其次是现在。
The best time to plant a tree was twenty years ago. The second best time is now.
The deepest insights often come from unexpected places.
The human being is a most curious creature. He thinks he has a soul, but he is a soul; he has a body.
What seems to us as bitter trials are often blessings in disguise.
家庭是一个生产人力资本的小工厂。