The successful leader must plan his work and work his plan.

Constancy of purpose is the first principle of success.

Those who succeed in an outstanding way seldom do so before the age of 40. More often, they do not strike their real pace until they are well beyond the age of 50.

The brain is the first broadcasting station ever invented.

Truly, “thoughts are things,” and powerful things at that, when they are mixed with definiteness of purpose, persistence, and a burning desire for their translation into riches, or other material objects.

What remarkable strength is shown by the person who can lay aside personal prejudices and work without friction with a group of individuals with whom he or she is not in accord on many subjects.

One of the most essential yet the hardest truths that I have had to learn is that every person should be his own hardest task-master.