Singleness of purpose is one of the chief essentials for success in life, no matter what may be one's aim.
John D. RockefellerNever think you need to apologize for asking someone to give to a worthy cause, any more than as though you were giving him or her an opportunity to participate in a high-grade investment. The duty of giving is as much his or hers as is the duty of asking yours.
John D. RockefellerA friendship founded on business is better than a business founded on friendship.
John D. Rockefeller