How Can You Be Certain

Science Is Practical Philosophy.

There Is A Little Gland In The Brain In Which The Soul Exercises Its Functions In A More Particular Way Than In The Other Parts.

The Mind Effortlessly And Automatically Takes In New Ideas, Which Remain In Limbo Until Verified Or Rejected By Conscious, Rational Analysis.

I Experienced In Myself A Certain Capacity For Judging Which I Have Doubtless Received From God, Like All The Other Things That I Possess; And As He Could Not Desire To Deceive Me, It Is Clear That He Has Not Given Me A Faculty That Will Lead Me To Err If I Use It Aright.

Everything Is Self-evident.