The truth is not always beautiful, nor beautiful words the truth.
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
逻辑学研究不仅仅是关于规则,更是关于理解思维的结构。
改变的秘诀在于集中你所有的精力,不是对抗旧的,而是建设新的。