Better keep yourself clean and bright; you are the window through which you must see the world.
Inner peace is found by changing yourself, not the people who hurt you.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
One ought, every day at least, to hear a little song, read a good poem, see a fine picture, and, if it were possible, to speak a few reasonable words.
Everyone thinks of changing the world, but no one thinks of changing himself.