Periods of tranquility are seldom prolific of creative achievement. Mankind has to be stirred up.
It is by acts and not by ideas that people live.
Action may not always bring happiness, but there is no happiness without action.
What you do speaks so loud that I cannot hear what you say.
Think like a man of action, act like a man of thought.
Positive anything is better than negative nothing.
Life affords no higher pleasure than that of surmounting difficulties, passing from one step of success to another, forming new wishes and seeing them gratified.
The mode by which the inevitable comes to pass is effort.
Do not attempt to do a thing unless you are sure of yourself; but do not relinquish it simply because someone else is not sure of you.
The greatest reward for doing is the opportunity to do more.