Cultivation of mind should be the ultimate aim of human existence.
Ninety-nine percent of who you are is invisible and untouchable.
Man has the power to act as his own destroyer - and that is the way he has acted through most of his history.
Sickness is mankind's greatest defect.
After your death you will be what you were before your birth.
A wise man can play the part of a clown, but a clown can't play the part of a wise man.
Human nature is not totally fixed, but on any realistic scale, evolutionary processes are much too slow to affect it.
A man's first care should be to avoid the reproaches of his own heart.
Of mankind we may say in general they are fickle, hypocritical, and greedy of gain.
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.
Humans are not proud of their ancestors, and rarely invite them round to dinner.
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?
There is no come back to caves. We are too many.
Family not only need to consist of merely those whom we share blood, but also for those whom we'd give blood.
Every form of addiction is bad, no matter whether the narcotic be alcohol, morphine or idealism.
Anyone who says he can see through women is missing a lot.
Johnny Cash has always been larger than life.
A narrow mind and a fat head invariably come on the same person.
In spite of everything, I still believe that people are really good at heart.
Challenging the meaning of life is the truest expression of the state of being human.
Progress of mankind is progress of mind and intellect.