Nothing appears more surprizing to those, who consider human affairs with a philosophical eye, than the easiness with which the many are governed by … - David Hume

Philosophers who have denied that there are any innate ideas probably meant only that all ideas were copies of our impressions. [W]hat is meant by ‘innate’? If ‘innate’ is equivalent to ‘natural’, then all the perceptions and ideas of the mind must be granted to be innate or natural, in whatever sense we take the latter word, whether in opposition to what is uncommon, what is artificial, or what is miraculous. If innate means ‘contemporary with our birth’, the dispute seems to be frivolous — there is no point in enquiring when thinking begins, whether before, at, or after our birth.

But though there be naturally a wide difference in point of delicacy between one person and another, nothing tends further to encrease and improve this talent, than practice in a particular art, and the frequent survey or contemplation of a particular species of beauty.

Scepticism may be theoretically irrefutable, but even the sceptic must ‘act … and live, and converse, like other men’, since human nature gives him no choice.