Albert Schweitzer — "The greatest discovery of my generation is that a human being can alter his life…"

"The most important human endeavor is the striving for morality in our actions. Our inner balance and even our very existence depend on it. Only morality in our actions can give beauty and dignity to l…"

"The highest of all sciences is the science of living."

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

"One thing I know: the only ones among you who will be really happy are those who have sought and found how to serve."

"The greatest challenge of the day is: how to bring about a revolution of the heart, a revolution which has to start with each one of us."