Look wise; say nothing and grunt. Speech was given to conceal thought.

The great minds, the great works transcend all limitations of time, of language, and of race, and the scholar can never feel initiated into the company of the elect until he can approach all of life's problems from the cosmopolitan standpoint.

To know what has to be done, then do it, comprises the whole philosophy of practical life.

The future is today.

Observe, record, tabulate, communicate. Use your five senses. Learn to see, learn to hear, learn to feel, learn to smell, and know that by practice alone you can become expert.

It is much more important to know what sort of a patient has a disease than what sort of a disease a patient has.