William Harvey

The future of medicine lies in the hands of those who dare to question.

I have often retired to my garden to contemplate the wonders of nature.

The greatest reward is the knowledge that one has contributed to the common good.

I profess myself a zealous follower of truth, and a foe to all imposture and error.

I have often wondered, and indeed not without reason, why the blood in the veins should be so much more abundant than in the arteries.

The heart is the primum mobile, the first mover, of the whole body.

It is a matter of common observation that the blood flows from the heart into the arteries, and from the arteries into the veins, and from the veins back to the heart.

I have demonstrated by experiment that the blood is in a perpetual motion of circulation.

The circulation of the blood is a new doctrine, and I doubt not but it will meet with opposition.

I appeal to the judgment of all candid and impartial men, whether I have not proved my assertions by ocular demonstration.

Nature is nowhere accustomed to be wanting in necessary things.

The more accurately we search into the wondrous and intricate workings of nature, the more occasion shall we have to admire the consummate wisdom and power of its Author.

I have been so bold as to publish my observations, not doubting but that they will be found true.

The blood is the vehicle of life, and the heart is its engine.

I have often wondered at the incredible force and velocity with which the blood is propelled from the heart.

I have not been moved by the desire of fame, but by the love of truth.

The heart is a pump, and the blood is the fluid it circulates.

I have made my observations with my own hands, and with my own eyes.

The circulation of the blood is a divine mystery, and a wonderful work of God.

I have not been afraid to contradict the opinions of the ancients, when I have found them to be erroneous.