Every chemical compound must have a definite composition, which can be expressed by the symbols of its elements.
每一种化合物都必须有确定的组成，这可以用其元素的符号来表示。
世界称之为不道德的书籍，是那些展示了世界自身羞耻的书籍。
We are all walking around with an evolutionary user's manual in our heads, but most people don't realize it.
真正的艺术必须为人民服务，而不是为精英服务。
"Only through suffering does one understand the depth of life."
幸福通过美德获得；它是人通过自己的意志获得的美好。
The ocean is not just a resource to be exploited, but a legacy to be preserved for future generations.