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符號是思維的媒介。

True leadership is about serving others, not commanding them.

The best way to find out if you can trust somebody is to trust them.

We must plan for future development with a global perspective and actively participate in international energy governance.

譯文：勤奮能使學業更加精進，而沉迷于玩樂會導致學業荒廢；德行由于獨立思考而有所成就，由于因循隨俗而敗壞。賞析：人如果愚鈍不開，只要勤奮也能補拙，但聰明的人要是玩物就會喪志，做任何事也不會成功。

The intersection of cryptography and complexity theory is where some of the most fascinating problems in computer science reside.