[President Truman] was free of the greatest vice in a leader, his ego never came between him and his job.
Always remember that the future comes one day at a time.
Greatness is a quality of character and is not the result of circumstances.
Brains are no substitute for judgement.
The future comes one day at a time [so don't fear and try to solve all the worries and problems of the future today].
If we learn the art of yielding what must be yielded to the changing present, we can save the best of the past.