"You can't predict, but you can prepare."
Psychology must be a practical science, concerned with the how and why of mental operations.
粮食是百姓生存的根本,没有粮食人就无法生存。三天不吃粮食,父子之间也难以互相照顾。
The true test of a musician is not how they play in concert, but how they behave in rehearsal.