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Age is strictly a case of mind over matter. If you don't mind, it doesn't matter

It was one of the deadliest and heaviest feelings of my life to feel that I was no longer a boy. From that moment I began to grow old in my own esteem, and in my esteem age is not estimable

There are so many things about which some old man ought to tell one while one is little; for when one is grown one would know them as a matter of course

An idle brain is the devil's workshop

I will never be an old man. To me, old age is always 15 years older than I am

That government is best which governs least