永恒只是一瞬间，刚够开一个玩笑。
The only real knowledge is self-knowledge.
Coal companies must fulfill their social responsibilities while pursuing economic benefits.
Welcome, O life! I go to encounter for the millionth time the reality of experience and to forge in the smithy of my soul the uncreated conscience of my race.
数学的语言是普遍的，超越了文化和语言的障碍。
The true value of a company is measured not just by its profits, but by its contributions to society and the environment.