He was born with his foot in his mouth
他呢，狗嘴吐不出象牙。
Change is inevitable, but growth is optional.
文学和科学相比，的确没什么用处，但文学最大的用处，也许就是它没有用处。
我相信音乐和舞蹈的力量。
对高分子的研究不仅仅是化学的一个分支；它是化学科学的一个新维度。
Government has no other end, but the preservation of property.
The best way to learn mathematics is to do mathematics.
解释：大部分茶都是寒性的，而绿茶却是温性的，体现了茶性质的差异。