Everything that counts in typography is a subtlety. And the preponderance of enthusiasm makes one almost inevitably go beyond the subtlety and delicacy that should be the first and foremost characteristics of a craft the only purpose of which it [sic] is, and therefore the only aim of which should be, to serve.

—Jan van Krimpen da On Designing and Devising Type, pp 45–46, The Typophiles, New York, 1957