We can easily forgive a child who is afraid of the dark;the real tragedy of life is when men are afraid of the light.
自由与秩序并非不相容;真理即力量;自由讨论是真理的生命。
Never stop learning because life never stops teaching.
创新不仅仅是创造新事物,更是要在人们的生活中产生积极影响。