It is a wise man that does know the contented man is never poor, whilst the discontented man is never rich.
The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.
You laugh at me because I'm different, I laugh at you because you're all the same.
Those who cannot work with their hearts achieve but a hollow, half-hearted success that breeds bitterness all around.
Instinct is a marvellous thing. It can neither be explained nor ignored.
Man is not the creature of circumstances, Circumstances are the creatures of men.
I don't know, I don't care, and it doesn't make any difference.
Those who dance are considered insane by those who cannot hear the music.
No act of kindness, no matter how small, is ever wasted.
Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.
There is geometry in the humming of the strings. There is music in the spacing of the spheres.
If we do not lay out ourselves in the service of mankind whom should we serve?
Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.
If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.
One who deceives will always find those who allow themselves to be deceived.
There is always time to add a word, never to withdraw one.
No man has any natural authority over his fellow men.
None but ourselves can free our minds.
One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.
You are braver than you believe, stronger than you seem, and smarter than you think.
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.