Leonardo da Vinci
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
More quotes and aphorisms
Standing as I do, with my hand upon this staff...The praise of ancient authors proceeds...Nature, philosophy and social issues are the three things...In reading the lives of great men, I found that...A woman can say more...Teens think listening to music helps them concentrate...
