Thomas Reid 
Inquiry Into the Human Mind 
On the Principles of Common Sense

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. To such I appeal, as the only competent judges. If they disapprove, I am probably in the wrong, and shall be ready to change my opinion upon conviction. If they approve, the Many will at least yield to their authority, as they always do.<br><br>However contrary my notions are to those of the writers I have mentioned, their speculations have been of great use to me, and seem even to point out the road which I have taken: and your Lordship knows, that the merit of useful discoveries is sometimes not more justly due to those that have hit upon them, than to others that have ripened them, and brought them to the birth.<br><br>I acknowledge, my Lord, that I never thought of calling in question the principles commonly received with regard to the human understanding, until the Treatise of Human Nature was published in the year 1739. The ingenious author of that treatise, upon the principles of Locke, who was no sceptic, hath built a system of scepticism, which leaves no ground to believe any one thing rather than its contrary. His reasoning appears to me to be just: there was therefore a necessity to call in question the principles upon which it was founded, or to admit the conclusion.<br><br>But can any ingenuous mind admit this sceptical system without reluctance?