Date: March, 1778

"An eminent physician in Holland, entrusted at once with a medical chair in the university of Leyden, and with the health of the Prince of Orange, being asked what the soul was? paused, and then answer, 'C'est un ressort. It is a spring.' As the main-spring actuates the wheels and other component...

— Boswell, James (1740-1795)

Date: March, 1778

"And my similitude between a watch in its case, and the soul in its material frame, will, I persuade myself, be agreeable to all my readers, whose dispositions are mild, and like better to be pleased with what they read, than to attack it."

— Boswell, James (1740-1795)

Date: 1785

"BOSWELL. 'But, sir,'tis like walking up and down a hill; one man will naturally do the one better than the other. A hare will run up a hill best, from her fore-legs being short; a dog down.' JOHNSON. 'Nay, sir; that is from mechanical powers. If you make mind mechanical, you may argue in that ma...

— Boswell, James (1740-1795)

Date: 1785

"He appears to me like a great mill, into which a subject is thrown to be ground. It requires, indeed, fertile minds to furnish materials for this mill. I regret whenever I see it unemployed; but sometimes I feel myself quite barren, and having nothing to throw in. I know not if this mill be a go...

— Boswell, James (1740-1795)