Wisdom is knowing what to do next; virtue is doing it.

- David Starr Jordan

Be a life long or short, its completeness depends on what it was lived for

- David Starr Jordan

Whatever is not nailed down is mine." This is the motto of the exploiter. "Whatever can be pried loose is not nailed down." This is the second maxim …

- David Starr Jordan

To say no at the right time, and then stand by it, is the first element of success. He is the wise man who, for all his life, can keep mind and soul…

- David Starr Jordan

There is no pleasure in life equal to that of the conquest of a vicious habit.

- David Starr Jordan

No one is really miserable who has not tried to cheapen life.

- David Starr Jordan

Whatever you attempt, go at it with spirit.

- David Starr Jordan

There cannot be perfect civilization until Man realizes that the rights of every living creature are as sacred as his own.

- David Starr Jordan

There is no real excellence in all this world which can be separated from right living.

- David Starr Jordan