The beauty of mathematics lies not in its complexity but in its simplicity and the way it reveals hidden truths.
数学之美不在于其复杂性，而在于其简洁性以及它揭示隐藏真理的方式。
A book is a mirror: if an ape looks into it, an apostle is unlikely to look out.
儿童教育是人类最重要的一个问题。
It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.
Chemistry is the poetry of logic and the logic of poetry.
伟大的诗人是最不快乐的存在。