The difference between stupid and intelligent people — and this is true whether or not they are well-educated — is that intelligent people can handle subtlety. They are not baffled by ambigous or even contradictory situations — in fact, they expect them and are apt to become suspicious when things seem overly straightforward.

Sensitive children come to be called “difficult” because adults have trouble understanding their temperament and because parenting methods that work with other children are frustratingly inadequate with this group.

I have often observed, to my regret, that a widespread prejudice exists with regard to the educability of intelligence. The familiar proverb, "When one is stupid, it is for a long time," seems to be accepted indiscriminately by teachers with a stunted critical judgement. These teacher lose interest in students with low intelligence. Their lack of sympathy and respect is illustrated by their unrestrained comments in the presence of the children: "This child will never achieve anything... He is poorly endowed... He is not intelligent at all." I have heard such rash statements too often. They are repeated daily in primary schools, nor are secondary schools exempt from the charge.

Even in this world of course it is the stupidest children who are most childish and the stupidest grown-ups who are most grown-up.

A lot is said about children having stronger psychic ability because they’re so unjaded and innocent. This excruciating view of children is generally expounded by people who think like children and perhaps can be forgiven.

My theory is that there is a finite amount of intelligence in a family, and you're supposed to gradually transfer it to your children over a period of many years. This is why your parents started to get so stupid just at the time in your life when you were getting really smart.

Weird behavior is natural in smart children, like curiosity is to a kitten.

It’s not how smart your children are, it’s how are they smart.

The difference between stupid and intelligent people – and this is true whether or not they are well-educated – is that intelligent people can handle subtlety.

It is the stupidest children who are most childish and the stupidest grown-ups who are most grown-up.

Our children grow up in a culture permeated with the idea that there are "smart people" and "dumb people". The social construction of the individual is as a bundle of aptitudes. There are people who are "good at math" and people who "can't do math." Everything is set up for children to attribute their first unsuccessful or unpleasant learning experiences to their own disabilities. As a result, children perceive failure as relegating them either to the group of "dumb people" or, more often, to a group of people "dumb at x" (where, as we have pointed out, x often equals mathematics). Within this framework children will define themselves in terms of their limitations, and this definition will be consolidated and reinforced throughout their lives. Only rarely does some exceptional event lead people to reorganize their intellectual self-image in such a way as to open up new perspectives on what is learnable.

Children are not less intelligent than adults; what they are is less informed.

The more stupid one is, the closer one is to reality. The more stupid one is, the clearer one is. Stupidity is brief and artless, while intelligence squirms and hides itself. Intelligence is unprincipled, but stupidity is honest and straightforward.

One cannot always know what children are thinking. Children are hard to understand, especially when careful training has accustomed them to obedience, and experience has made them cautious in their conversation with their teachers. Will you not draw from this the fine maxim that one should not scold children too much, but should make them trustful, so that they will not conceal their stupidities from us?