“Popular disregard, even disdain, for demonstrable truth is the most dangerous thing that can happen to a democracy.”

“A sure way of retaining the grace of heaven is to disregard outward appearances, and diligently to cultivate such things as foster amendment of life and fervour of soul, rather than to cultivate those qualities that seem most popular.”

“Popular medicine and popular morality belong together and ought not to be evaluated so differently as they still are: both are the most dangerous pseudo-sciences.”

“Since faith rests upon infallible truth, and since the contrary of a truth can never be demonstrated, it is clear that the arguments brought against faith cannot be demonstrations, but are difficulties that can be answered.”

“It is a dangerous and fateful presumption, besides the absurd temerity that it implies, to disdain what we do not comprehend. For after you have established, according to your fine undertstanding, the limits of truth and falsehood, and it turns out that you must necessarily believe things even stranger than those you deny, you are obliged from then on to abandon these limits.”

“The most powerful thing you can give in life is a word.The most dangerous thing you can hear is a word.”