The first requisite for success is to develop the ability to focus and apply your mental and physical energies to the problem at hand - without growing weary. Because such thinking is often difficult, there seems to be no limit to which some people will go to avoid the effort and labor that is associated with it.

The secret of success is focus of purpose.

The radio craze will die out in time.

Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.

I can never pick up a thing without wishing to improve it.

Vision without execution is delusion.

The man who doesn’t make up his mind to cultivate the habit of thinking misses the greatest pleasure in life.