When by these steps he has got resolution enough not to be deterr'd from what he ought to do, by the apprehension of danger; when fear does not, in sudden or hazardous occurrences, decompose his mind, set his body a-trembling, and make him unfit for action, or run away from it, he has then the courage of a rational creature: and such an hardiness we should endeavour by custom and use to bring children to, as proper occasions come in our way.

Sec. 115 - Some Thoughts Concerning Education (1693)