Quotes about Validity

Repetition does not transform a lie into a truth.

Truth is not determined by a majority vote.

It is not our believing of the Gospel that makes it true. It exists as independent, true Truth.

Why, after all, take as our standard a material world whose existence is affirmed by nothing more trustworthy than the sense-impressions of "normal men"; those imperfect and easily cheated channels of communication?

The Ten Commandments are just as valid today as they were when God gave them. They reflect the moral character of God, and they also provide the foundation of right living with others.

Indeed, truth draws strength from itself and not from the number of votes in its favour.

A thing is not necessarily true because a man dies for it.

The Bible - the wisest document ever known in human existence, which defies the ravages of time and change because it contains the truth that cannot be changed or invalidated.

Our ideas must agree with realities, be such realities concrete or abstract

A thing may be incredible and still be true; sometimes it is incredible because it is true.

Scientists have power by virtue of the respect commanded by the discipline... We live with poets and politicians, preachers and philosophers. All have their ways of knowing, and all are valid in their proper domain. The world is too complex and interesting for one way to hold all the answers.

The question: 'is the Euclidean geometry true?' has no significance for Poincaré, for these is no such thing as one geometry being more true than another.