子绝四：毋意，毋必，毋固，毋我。
出自春秋·鲁·孔子《论语》。孔子杜绝了四种弊病，不妄意，不妄下决断，不固执，不以自我为中心。
Sleep is not a luxury; it’s a necessity for your brain.
Rigor in proof is what separates mathematics from all other sciences.
Leadership is about making tough decisions today for a better tomorrow.
建筑不在于形式，而在于许多其他事物。
The act of reading is an act of resistance against forgetting.