The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
我们都被过去的幽灵所困扰。
释义：在昏暗不明的环境中，若仍能保持光明的心境，内心就能像青天白日一样明亮无染。
深刻沉着、忠厚笃信，是第一等的禀赋；直率开朗、豪迈雄健，是第二等的禀赋；明智聪慧、能言善辩，是第三等的禀赋。
Philosophy is a battle against the bewitchment of our intelligence by means of language.
The true journey is not about seeing new landscapes, but about having new eyes.