The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
The greatest obstacle to progress is not ignorance, but the illusion of knowledge.
有见识的人做事能提得起,放得下,算得到,做得完,看得破及撇得开。
The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.