The biggest risk is not taking any risk... In a world that is changing really quickly, the only strategy that is guaranteed to fail is not taking risks.
Ring the bells that still can ring, forget your perfect offering. There is a crack in everything, that's how the light gets in.
广义相对论在某种意义上就是引力场的理论。
The essence of technology is by no means anything technological.
心理学必须摆脱一切形而上学的纠缠。