大分子的概念并不容易被接受;它需要化学家对物质结构的思考方式发生彻底的改变。
In order to achieve independence, we must rely on our own strength.
Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.
一次不公的司法判决比多次不法的行为为祸尤烈。不法行为弄脏的不过是水流,而不公的判决则将水源污染了。