Happiness depends upon ourselves.
A friend to all is a friend to none. - Aristotle
Different men seek after happiness in different ways and by […] - Aristotle
Politicians also have no leisure, because they are always aiming […] - Aristotle
You will never do anything in this world without courage. […] - Aristotle
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was a Greek philosopher and scientist. His views on physical science shaped teaching in medieval times and extended into the Renaissance.