The most damaging phrase in the language is: 'It's always been done this way.'

I adore simple pleasures.They are the last refuge of the complex.

合作是解决复杂问题的关键。

Deep into that darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.

美国不应该试图在世界各地传播民主。