What is common to many is least taken care of, for all men have greater regard for what is their own than what they possess in common with others.

It is the mark of an educated mind to rest satisfied with the degree of precision which the nature of the subject admits and not to seek exactness where only an approximation is possible.

First, have a definite, clear practical ideal; a goal, an objective. Second, have the necessary means to achieve your ends; wisdom, money, materials, and methods. Third, adjust all your means to that end.

This much then, is clear: in all our conduct it is the mean that is to be commended.

The structural unity of the parts is such that, if any one of them is displaced or removed, the whole will be disjointed and dis­turbed. For a thing whose presence or absence makes no visible difference is not an organic part of the whole.

Since the branch of philosophy on which we are at present engaged differs from the others in not being a subject of merely intellectual interest — I mean we are not concerned to know what goodness essentially is, but how we are to become good men, for this alone gives the study its practical value — we must apply our minds to the solution of the problems of conduct.

The physician heals, Nature makes well.