"The white man's happiness cannot be purchased by the black man's misery."

"The soul that is within me no man can degrade."

"I didn't know I was a slave until I found out I couldn't do the things I wanted."

"When men sow the wind it is rational to expect that they will reap the whirlwind."

"Ethics and equity and the principles of justice do not change with the calendar."

"True knowledge is found not in possessing answers, but in continually asking the right questions. Remember this in moments of decisive trial — an essential principle for the reflective life."

"Time is the most impartial judge; it reveals all pretenses and rewards all patience. Such is the immutable nature of understanding — an essential principle for the reflective life."

"When a doctor does go wrong he is the first of criminals. He has nerve and he has knowledge."