915 Quotes About Logic

If we were rational enough to judge what we are fed based on what we are fed, those in the business of selling us hope (i.e., public speakers, presidents, priests, etc.) wouldn't wear suits.

[Rumsfield's] reply included a complex formulation that would become inextricably associated with him: 'There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.

When examining evidence relevant to a given belief, people are inclined to see what they expect to see, and conclude what they expect to conclude. Information that is consistent with our pre-existing beliefs is often accepted at face value, whereas evidence that contradicts them is critically scrutinized and discounted. Our beliefs may thus be less responsive than they should to the implications of new information

People will always prefer black-and-white over shades of grey, and so there will always be the temptation to hold overly-simplified beliefs and to hold them with excessive confidence

No. The moral of the story in so far as it has one is that cannibals can study logic, and that if you are going to leave the path, you better have your wits about you and know better than to trust the first scary old lady who talks to you in public.

What we believe is heavily influenced by what we think others believe

You can need someone you don't love.You can't love someone you don't need.Consequently,You can be with someone you don't love because you need the person.But you can't be with someone you don't need because you love the person.

For desired conclusions, we ask ourselves, "Can I believe this?", but for unpalatable conclusions we ask, "Must I believe this?

We humans seem to be extremely good at generating ideas, theories, and explanations that have the ring of plausibility. We may be relatively deficient, however, in evaluating and testing our ideas once they are formed