I Have Possessed That Heart, That Noble

The Close And Thoughtful Observer More And More Learns To Recognize His Limitations. He Realizes That With The Steady Growth Of Knowledge More And More New Problems Keep On Emerging.

Too Rigid Scruples Are Concealed Pride.

Man Errs, Till He Has Ceased To Strive.

If A Man Writes A Book, Let Him Set Down Only What He Knows. I Have Guesses Enough Of My Own.

In All Our Academies We Attempt Far Too Much. ... In Earlier Times Lectures Were Delivered Upon Chemistry And Botany As Branches Of Medicine, And The Medical Student Learned Enough Of Them. Now, However, Chemistry And Botany Are Become Sciences Of Themselves, Incapable Of Comprehension By A Hasty Survey, And Each Demanding The Study Of A Whole Life, Yet We Expect The Medical Student To Understand Them. He Who Is Prudent, Accordingly Declines All Distracting Claims Upon His Time, And Limits Himself To A Single Branch And Becomes Expert In One Thing.