What sunshine is to flowers, smiles are to humanity. These are but trifles, to be sure; but scattered along life's pathway, the good they do is inconceivable.

The U.S. Census Bureau acknowledged this fact when it reported that those with a bachelor's degree earn on average $1 million more over their lifetime than those with only a high school diploma.

Every form of addiction is bad, no matter whether the narcotic be alcohol, morphine or idealism.

We are not enemies, but friends. We must not be enemies. Though passion may have strained, it must not break our bonds of affection. The mystic chords of memory will swell when again touched, as surely they will be, by the better angels of our nature.

A man sooner or later discovers that he is the master-gardener of his soul, the director of his life.

All of humanity's problems stem from man's inability to sit quietly in a room alone.

In spite of everything, I still believe that people are really good at heart.

Though I love my country, I do not love my countrymen.

If you can't say something good about someone, sit right here by me.

We need more light about each other. Light creates understanding, understanding creates love, love creates patience, and patience creates unity.

If you talk to a man in a language he understands, that goes to his head. If you talk to him in his language, that goes to his heart.

We have to heal our wounded world. The chaos, despair, and senseless destruction we see today are a result of the alienation that people feel from each other and their environment.

Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

More than 26,000 lives may be lost to the effects of drug abuse this year. This tragic impact is felt in communities across this great nation. Sadly many of these deaths occur among our young people.

Sickness is mankind's greatest defect.

Human history is in essence a history of ideas.

On the highest throne in the world, we still sit only on our own bottom.

I measure the progress of a community by the degree of progress which women have achieved.

I despise people who depend on these things [heroin and cocaine]. If you really want a mind-altering experience, look at a tree.

Man has the power to act as his own destroyer - and that is the way he has acted through most of his history.

There are four million different kinds of animals and plants in the world. That’s four million solutions to the problem of staying alive.