The African is my brother but he is my younger brother by several centuries.

Even if it is a little thing, do something for those who have need of help.

To the truly ethical man, all of life is sacred, including forms of life that from the human point of view may seem lower than ours.

The great enemy of morality is indifference.

To me, good health is more than just exercise and diet. Its really a point of view and a mental attitude you have about yourself.

An optimist is a person who sees a green light everywhere, while a pessimist sees only the red stoplight... the truly wise person is colorblind.

But merely accepting authoritarian truth, even if that truth has some virtue, does not bring skepticism to an end. To blindly accept a truth one has never reflected upon retards the advance of reason. Our world rots in deceit. . . . Just as a tree bears the same fruit year after year and at the same time fruit that is new each year, so must all permanently valuable ideas be continually created anew in thought. But our age pretends to make a sterile tree bear fruit by tying fruits of truth onto its branches.