There is no permanent absolute unchangeable truth; what we should pursue is the most convenient arrangement of our ideas.

There is no permanent absolute unchangeable truth; what we should pursue is the most convenient arrangement of our ideas.

He was born stupid, and greatly increased his birthright.

The Bible may be the truth, but it is not the whole truth and nothing but the truth.

When the water of a place is bad it is safest to drink none that has not been filtered through either the berry of a grape, or else a tub of malt. These are the most reliable filters yet invented.

A man should have any number of little aims about which he should be conscious and for which he should have names, but he should have neither name for, nor consciousness concerning the main aim of his life.

There are two classes [of scientists], those who want to know, and do not care whether others think they know or not, and those who do not much care about knowing, but care very greatly about being reputed as knowing.