Who sows virtue reaps honour.

All our knowledge has its origins in our perceptions.

Nothing strengthens authority so much as silence.

Iron rusts from disuse; water loses its purity from stagnation… even so does inaction sap the vigour of the mind.

He who is fixed to a star does not change his mind.

In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.

I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.

Learning never exhausts the mind.

People of accomplishment rarely sat back and let things happen to them. They went out and happened to things.