He who learns but does not think, is lost! He who thinks but does not learn is in great danger.
When you know a thing, to hold that you know it, and when you do not know a thing, to allow that you do not know it – this is knowledge.
He who exercises government by means of his virtue may be compared to the north polar star, which keeps its place and all the stars turn towards it.
Old age, believe me, is a good and pleasant thing. It is true you are gently shouldered off the stage, but then you are given such a comfortable front stall as spectator.