Freedom of speech is the great bulwark of liberty; they prosper and die together.
言论自由是自由的重要堡垒;它们共同繁荣和共同消亡。
Science is a wonderful thing if one does not have to earn one's living at it.
真正的矿业挑战不在于开采资源,而在于可持续开采并为所有利益相关者创造价值。
教师个人的范例,对于青年人的心灵,是任何东西都不可能代替的最有用的阳光。
对付一个不自由的世界,唯一的方法就是变得如此绝对自由,以至于你的存在本身就是一种反叛。
The last of human freedoms is the ability to choose one's attitude in any given set of circumstances.