Leonardo da Vinci

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.

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

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.

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never read more

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

I have offended God and mankind because my work didn't reach the quality it should have.

I have offended God and mankind because my work didn't reach the quality it should have.