It is a cliche that most cliches are true, but then like most cliches, that cliche is untrue.
The use of travelling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are.
Experience is the only prophecy of wise men.
Don't criticize what you don't understand, son. You never walked in that man's shoes.
Men build too many walls and not enough bridges.
Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.
Judge not unless you judge yourself.
A house is not a home unless it contains food and fire for the mind as well as the body.
If we do not lay out ourselves in the service of mankind whom should we serve?
The road of excess leads to the palace of wisdom.
The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.
A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
Every act of creation is first an act of destruction.
One must wait until the evening to see how splendid the day has been.
Experience keeps a dear school, but fools will learn in no other.
Common sense is in spite of, not as the result of education.
He who can destroy a thing, can control a thing.
Obsession is the wellspring of genius and madness.
In anger we should refrain both from speech and action.
To a wise and good man the whole earth is his fatherland.
Don't compromise yourself. You are all you've got.