5th-century BCE Chinese philosopher and politician
Confucius (traditionally 28 September 551 B.C. – 479 B.C.) was a Chinese social philosopher, whose teachings deeply influenced East Asian life and thought. "Confucius" is a latinization of the Chinese 孔夫子, Kong Fu Zi or K'ung-fu-tzu, literally "Master Kong", but he is usually referred to in China with a simpler version of this honorific as 孔子, Kongzi, or Kǒng Zǐ.
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The superior man, when resting in safety, does not forget that danger may come. When in a state of security he does not forget the possibility of ruin. When all is orderly, he does not forget that disorder may come. Thus his person is not endangered, and his States and all their clans are preserved.
Some are born with knowledge, some derive it from study, and some acquire it only after a painful realization of their ignorance.
But the knowledge being possessed, it comes to the same thing.
Some study with a natural ease, some from a desire for advantages, and some by strenuous effort.
But the achievement being made, it comes to the same thing.
At fifteen I set my heart upon learning.
At thirty, I had planted my feet firm upon the ground.
At forty, I no longer suffered from perplexities.
At fifty, I knew what were the biddings of Heaven.
At sixty, I heard them with docile ear.
At seventy, I could follow the dictates of my own heart; for what I desired no longer overstepped the boundaries of right.