The most significant threat to liberal democracy today is not from rival ideologies like communism or fascism, but from within—from the rise of populism and the erosion of democratic norms.
The first step is to establish that something is possible; then probability will occur.
智慧之鸟的猫头鹰,在文明的暮色中才开始起飞。
墨翟我上没有侍奉国君的差事,下没有耕田种地的艰难,我怎么敢放弃读书呢? 
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
我不是星星,我是银河。