Sometimes life hits you in the head with a brick.Don’t lose faith.
The books that the world calls immoral are books that show the world its own shame.
衡量矿业公司成功的真正标准是它能否为后代留下积极的遗产。
物理学和数学之间的界限并不像人们想象的那么清晰。
Believe in yourself even when no one else does, because that's when it matters most.