"Books are the quietest and most constant of friends."

四勿：“非礼勿视，非礼勿听，非礼勿言，非礼勿动。”四端：“恻隐之心，仁之端也；羞恶之心，义之端也；辞让之心，礼之端也；是非之心，智之端也。”颜渊的“四勿”，要牢记心里；下工夫闲静存诚，克服外部的干扰以修养心性；孟子的“四端”，要尽力扩充，下工夫格物致知，由近及远，推己及人。

The most considerable difference I can see between men and animals is not in reason, but in the extent of the power of using it.  

我不是一个轻易放弃的人。

Sometimes the only way to stay sane is to go a little crazy sometimes.