I beg you not to resort to demonstrations, for they have become nothing but burned paper.
Against a diseased imagination demonstration goes for nothing.
We may assume the superiority ceteris paribus of the demonstration which derives from fewer postulates or hypotheses - in short, from fewer premises.
In other cases, when the medium becomes entranced, the demonstration of a communicator's separate intelligence may become stronger and the sophistication less.
A good landscape painting is not just a demonstration of competent application of paint. It must offer a feeling of homage to the subject.
Freemasonry, Judaism, and Occultism, whose alliance and reciprocal interpretation no longer require demonstration.
I feel that talent means little unless coupled with an insatiable desire to give an excellent personal demonstration of ability. . . talent must be in company with a capacity for unlimited effort which provides the power that eventually hurdles the difficulties that would frustrate lukewarm enthusiasm.
Demonstration of individual talent involves originality and it is easy to destroy natural talent.
"Why doesn't the fellow who says, "I'm no speechmaker," let it go at that instead of giving a demonstration? "
In that disputable point of persecuting men for conscience sake, I see such dreadful consequences rising, I would be as fully convinced of the truth of it, as a mathematical demonstration, before I would venture to act upon it or make it a part of my religion.
The only good that I can see in the demonstration of the truth of "Spiritualism" is to furnish an additional argument against suicide. Better live a crossing-sweeper than die and be made to talk twaddle by a "medium" hired at a guinea a séance.
They come into being not through demonstration but through revelation, through the medium of powerful personalities.
I would beg the wise and learned fathers (of the church) to consider with all diligence the difference which exists between matters of mere opinion and matters of demonstration. . . . [I]t is not in the power of professors of the demonstrative sciences to alter their opinions at will, so as to be now of one way of thinking and now of another. . . . [D]emonstrated conclusions about things in nature of the heavens, do not admit of being altered with the same ease as opinions to what is permissible or not, under a contract, mortgage, or bill of exchange.
To Believe without evidence and demonstration is an act of ignorance and folly
Collage is a demonstration of the many becoming the one, with the one never fully resolved because of the many that continue to impinge upon it.
God forbid that Truth should be confined to Mathematical Demonstration!
Integrity in all things precedes all else. The open demonstration of integrity is essential.
The summit is the mere formality, the ceremonial demonstration of what was agreed to long ago, weeks, months before the summit.
Teach not with your words, but with your actions; not with discussion but with demonstration. For it is what you do that your children will emulate, and how you are that they will become.
I am arguing that faith as such, faith as an alleged method of acquiring knowledge, is totally invalid and as a consequence, all propositions of faith, because they lack rational demonstration, must conflict with reason.