Leonardo da Vinci

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.

You do ill to praise, but worse to censure, what you do not understand

You do ill to praise, but worse to censure, what you do not understand

He who does not punish evil commands it to be done.

He who does not punish evil commands it to be done.

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.

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.