No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

可持续性不再是可选项，而是商业的必然要求。

有时最艰难的战斗发生在我们内心的沉默中。