True strength comes from overcoming the obstacles we thought we couldn't get past.
出自先秦《荀子·不苟》。君子加强道德修养没有比“诚”更重要的,达到了“诚”的要求也就到了修身养性的最高境界了。
Psychology must be based on direct experience and introspection.
人生没有如果,只有结果和后果。