The value of psychology is in its power to explain life.
心理学的价值在于其解释生活的力量。
出自先秦《荀子·礼论》。生是人的开始，死是人的终结。开始与终结都做得好，那么他的为人之道就完善了。说明意在劝人行仁行善，要善始善终。
The past is a kind of future that has already happened.
怀疑是智慧的开端，而非敌人。