心理学必须避免一切形式的心灵主义。
The best time to plant a tree was twenty years ago. The second best time is now.
The best way to predict the future is to create it.
解释:不在农忙时役使百姓而耽误农时,那么可以保证百姓富裕。
解析:不要贪天之功,不要掩人之善。