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
I think, in any profession, what you fear most...By prevailing over all obstacles and distractions, one may u...It's the teacher that makes the difference...As I read more and more — and it was not all verse...Technology is nothing. What's important is that...Success comes to those who dedicate everything...