心理学必须展示心灵如何服务于有机体的需求。

【解释】在宁静平淡的环境中，才能发现人生的真正境界；在粗茶淡饭的简单生活中，才能看清人生的真相。

The simple step of a courageous individual is not to take part in the lie. One word of truth outweighs the world. In keeping silent about evil, in burying it so deep within us that no sign of it appears on the surface, we are implanting it, and it will rise up a thousand fold in the future.

你把桃子投于我，我把李子回赠与你。桃子和李子价值相当，表明我本人是知恩图报的，也有互相赠送，礼尚往来的意思。