How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in your life you will have been all of these.

The fundamental defect of fathers is that they want their children to be a credit to them.

【释义】社会常把内向病理化，凯根用实验证明：内向气质是大脑独特的生物设定，藏着深度思考与独立创新的宝藏。

自由是唯一值得为之奋斗的东西。