To study the phenomenon of disease without books is to sail an uncharted sea, while to study books without patients is not to go to sea at all.

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.

Then we started clinical work ... and I just wasn't suited to that. I didn't like ... the whole structure of a teaching hospital. That is, I felt very much that treating patients as things is the wrong thing. And since I thought it was very hard to be a scientist and not do this, then I preferred not to do it at all. So, in fact, I think I am the only person who has ever passed medicine who had never seen a patient until his examination — because I never went. And, in fact, one of the great stories is that I failed my medicine because I was asked to smell this patient's breath and correctly diagnosed Macleans toothpaste where I should have diagnosed acetone.

Doctors are men who prescribe medicine of which they know little, to human beings of whom they know less, to cure diseases of which they know nothing.

Those who fall in love with practice without science are like a sailor who enters a ship without a helm or a compass, and who never can be certain whither he is going.

room without books is like a body without a soul.

A room without books is like a body without soul.

A room without books is like a body without a soul.

Whoever having undertaken to speak or write on Medicine, have first laid down for themselves some hypothesis to their argument, such as hot, or cold, or moist, or dry, or whatever else they choose, (thus reducing their subject within a narrow compass, and supposing only one or two original causes of diseases or of death among mankind,) are all clearly mistaken in much that they say; and this is the more reprehensible as relating to an art which all men avail themselves of on the most important occasions... For there are practitioners, some bad and some far otherwise, which, if there had been no such thing as Medicine, and if nothing had been investigated or found out in it... all would have been equally unskilled and ignorant of it, and everything concerning the sick would have been directed by chance. But now it is not so; for, as in all the other arts, those who practise them differ much from one another in dexterity and knowledge, so is it in like manner with Medicine. Wherefore I have not thought that it stood in need of an empty hypothesis, like those subjects which are occult and dubious... as, for example, with regard to things above us [meteorology, astronomy or astrology] and things below the earth [geology, Hades, , or outside of the ]; if any one should treat of these and undertake to declare how they are constituted, the reader or hearer could not find out, whether what is delivered be true or false; for there is nothing which can be referred to in order to discover the truth.

Those who are in love with practice without theoretical knowledge are like the sailor who goes onto a ship without rudder or compass and who never can be certain whither he is going,” he wrote in 1510. “Practice must always be founded on sound theory.”11

[A] lawyer without books would be like a workman without tools.

The study of medicine consists on the one hand in storing up in the mind an enormous number of facts, which are simply memorized without any real knowledge of their foundations, and on the other hand in learning practical skills, which have to be acquired on the principle “Don’t think, act!” Thus it is that, of all the professionals, the medical man has the least opportunity of developing the function of thinking.

The book you don’t read won’t help

Prayer without study would be empty. Study without prayer would be blind.