In our reasonings concerning matter of fact, there are all imaginable degrees of assurance, from the highest certainty to the lowest species of moral evidence. A wise man, therefore, proportions his belief to the evidence.

Though experience be our only guide in reasoning concerning matters of fact; it must be acknowledged, that this guide is not altogether infallible, but in some…

... no testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous, than the fact, whic…

The most perfect philosophy of the natural kind only staves off our ignorance a little longer: as perhaps the most perfect philosophy of the moral or metaphysi…

Scientific beliefs are supported by evidence, and they get results. Myths and faiths are not and do not.

Every man should be mentally honest. He should preserve as his most precious jewel the perfect veracity of his soul. He should examine all questions presented …

No man can control his belief. If I hear certain evidence I will believe a certain thing. If I fail to hear it I may never believe it. If it is adapted to my m…