The noblest pleasure is the joy of understanding.
In order to change the world, you have to get your head together first
If you buy what you do not need, you will need what you cannot buy.
The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.
Moderation in temper is always a virtue; but moderation in principle is always a vice.
There is a wisdom of the head, and... there is a wisdom of the heart.
Wisdom... comes not from age, but from education and learning.
Nothing fixes a thing so intensely in the memory as the wish to forget it.
One who deceives will always find those who allow themselves to be deceived.
All the great things are simple, and many can be expressed in a single word: freedom; justice; honor; duty; mercy; hope.
Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.
No one cares how much you know, until they know how much you care
One must wait until the evening to see how splendid the day has been.
Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.
There are two educations. One should teach us how to make a living and the other how to live.
The only limit to our realization of tomorrow will be our doubts of today.
Compassion is the basis of morality.
The first thing you'll have to do, is the last thing you wished.
Wrong life cannot be lived rightly.
Jealousy is the tribute mediocrity pays to genius.
But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.