我不是圣人，我不是罪人，我只是一个犯过错误的人。
I'm not a saint, I'm not a sinner, I'm just a man who's made mistakes.
Science is not just a collection of facts; it is a way of thinking.
Success comes from knowing that you did your best to become the best that you are capable of becoming.
自由是对自我设定法则的服从。
君子的为人之道是：外表暗淡无色而美德日见彰显。小人的为人之道是：外表色彩鲜明，但渐渐地消失了。君子的为人之道还在于：外表素淡而不使人厌恶，简朴而有文采，温和而又有条理，知道远是从近开始的，知道教化别人从自己做起，知道隐微的东西会逐渐显露，这样就进入圣人的美德中了。