I can calculate the motion of heavenly bodies but not the madness of people.
A man is not rightly conditioned until he is a happy, healthy, and prosperous being; and happiness, health, and prosperity are the result of a harmonious adjustment of the inner with the outer of the man with his surroundings.
A man's first care should be to avoid the reproaches of his own heart.
The world would be happier if men had the same capacity to be silent that they have to speak.
How can you thank a man for giving you what's already yours? How then can you thank him for giving you only part of what is yours?
Though I love my country, I do not love my countrymen.
There are four million different kinds of animals and plants in the world. Thatís four million solutions to the problem of staying alive.
Human history is in essence a history of ideas.
Men always talk about the most important things to perfect strangers.
If money help a man to do good to others, it is of some value; but if not, it is simply a mass of evil, and the sooner it is got rid of, the better.
A man sooner or later discovers that he is the master-gardener of his soul, the director of his life.
Are we happy that our grandchildren may never seen an elephant except in a picture book?
A desire to be observed, considered, esteemed, praised, beloved, and admired by his fellows is one of the earliest as well as the keenest dispositions discovered in the heart of man.
Outstanding people have one thing in common: an absolute sense of mission
People who know little are usually great talkers, while men who know much say little.
Our true nationality is mankind.
Americans of our own time - minority and majority Americans alike - need the continued guidance that the Voting Rights Act provides. We have come a long way, but more needs to be done.
A person is a person because he recognizes others as persons.
When people are protecting something truly special to them, they truly can become...as strong as they can be.
Human nature is not totally fixed, but on any realistic scale, evolutionary processes are much too slow to affect it.
In spite of everything, I still believe that people are really good at heart.