Nature is nowhere accustomed more openly to display her secret mysteries than in cases where she shows tracings of her workings apart from the beaten paths; nor is there any better way to advance the proper practice of medicine than to give our minds to the discovery of the usual law of nature, by careful investigation of cases of rarer forms of disease.
1657 Letter to John Vlackveld, 24 Apr.
I avow myself the partisan of truth alone.William Harvey
As art is a habit with reference to things to be done, so is science a habit in respect to things to be known.William Harvey
I appeal to your own eyes as my witness and judge.William Harvey
Harvey sought for truth in Truth's own book— Creation — which by God himself was writ;And wisely thought 'twas fitNot to read comments only upon it,But on th' original itself to look.Methinks in Art's great circle others standLock'd up together hand in hand:Every one leads as he is led,The same bare path they tread,A dance like that of Fairies, a fantastic round,With neither change of motion nor of ground.Had Harvey to this road confined his wit,His noble circle of the blood had been untrodden yet.William Harvey
Harvey was not content merely to gather knowledge; he digested and arranged it under the guidance of the faculties which compare and reason. ... Harvey appears to have possessed, in a remarkable degree, the power of persuading and conciliating those with whom he came in contact. In the whole course of his long life we hear nothing either of personal enemies or personal enmities ... one of the great men whom God, in virtue of his eternal laws, bids to appear on earth from time to time to enlighten, and to ennoble mankind.William Harvey
I profess both to learn and to teach anatomy, not from books but from dissections; not from positions of philosophers but from the fabric of nature.William Harvey