Private passions tire and exhaust themselves, public ones never.
Humanity is acquiring all the right technology for all the wrong reasons.
People seldom do what they believe in. They do what is convenient, then repent.
Everything can be taken from a man or a woman but one thing: the last of human freedoms to choose one's attitude in any given set of circumstances, to choose one's own way.
The whole universe is contained within a single human being – you.
No mortal can keep a secret. If the lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore.
A person is a person because he recognizes others as persons.
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.
One can choose to go back toward safety or forward toward growth. Growth must be chosen again and again; fear must be overcome again and again.
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.
Who makes us ignorant? We ourselves. We put our hands over our eyes and weep that it is dark.
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.
People fall forward to success.
There are four million different kinds of animals and plants in the world. That’s four million solutions to the problem of staying alive.
Sickness is mankind's greatest defect.
Cultivation of mind should be the ultimate aim of human existence.
Progress of mankind is progress of mind and intellect.
Ever more people today have the means to live, but no meaning to live for.
It is no measure of health to be well adjusted to a profoundly sick society.
Family not only need to consist of merely those whom we share blood, but also for those whom we'd give blood.
A question that sometimes drives me hazy: Am I, or the others, crazy?