There is scarcely an instance of a man who has made a fortune by speculation and kept it

I demand riches in definite terms; I have a definite plan for acquiring riches;I am engaged in carrying out my plan, and I am giving an equivalent,in useful service, of the value of those riches I demand.

Watch the costs and the profits will take care of themselves.

It was from my own early experience that I decided there was no use to which money could be applied so productive of good to girls and boys who have good within them and ability and ambition to develop it as the founding of a public library.

I will give a million dollars for any convincing proof of a future life.

The average person puts only 25% of his energy and ability into his work. The world takes off its hat to those who put in more than 50% of their capacity, and stands on its head for those few and far between souls who devote 100%.

Teamwork appears most effective if each individual helps others to succeed, increasing the synergy of that team; ideally, every person will contribute different skills to increase the efficiency of the team and develop its unity.