There cannot be mental atrophy in any person who continues to observe, to remember what he observes, and to seek answers for his unceasing hows and whys about things.
Alexander Graham BellThe most successful men in the end are those whose success is the result of steady accretion. It is the man who carefully advances step by step, with his mind becoming wider and wider - and progressively better able to grasp any theme or situation - persevering in what he knows to be practical, and concentrating his thought upon it, who is bound to succeed in the greatest degree.
Alexander Graham BellLeave the beaten track behind occasionally and dive into the woods. Every time you do you will be certain to find something you have never seen before.
Alexander Graham Bell