It is very sad for a man to make himself servant to a single thing; his manhood all taken out of him by the hydraulic pressure of excessive business. — I should not like to be merely a great doctor, a great lawyer, a great minister, a great politician.—I should like to be, also, something of a man.

As quoted in A Dictionary of Thoughts : Being a Cyclopedia of Laconic Quotations from the Best Authors, Both Ancient and Modern (1891) edited by Tryon Edwards. p. 326.