Leonardo da Vinci

Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for read more

Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Simplicity is the ultimate sophistication.

Simplicity is the ultimate sophistication.

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

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

Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen; so does inaction sap the read more

Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen; so does inaction sap the vigors of the mind.

Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is read more

Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.