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
It is better to be honourable than be honoured...Life-transforming ideas have always come to me...Go for it now. The future is promised to no one...Your living is determined not so much by what life...You are not here merely to make a living...The most exciting happiness is the happiness...