I cannot teach anybody anything. I can only make them think
Classical Greek (Athenian) philosopher credited as one of the founders of Western philosophy, and as being the first moral philosopher, of the Western ethical tradition of thought.
Where the willingness is great, the difficulties cannot be great
By means of knowledge we raise ourselves above everybody else
His part is mercy, ours is endless praise
It is a good rule after reading a new book, never to allow yourself another new one till you have read an old one in between
The snake which cannot cast its skin has to die. As well the minds which are prevented from changing their opinions; they cease to be mind
The only real failure in life is not to be true to the best one knows
Author, Inventor, Philosopher, Scientist
Historian, Philosopher, Writer
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Astronomer, Philosopher, Scientist
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Emperor, Philosopher
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