All judgements do not require examination, that is, investigation into the grounds of their truth.
Thus all judgements as to what is useful depend upon judgements as to what has value on its own account.
The common reason of men in its practical judgements perfectly coincides with this and always has in view the principle here suggested.
Many judgements are admitted to be true from mere habit or inclination; but, because reflection neither precedes nor follows, it is held to be a judgement that has its origin in the understanding.
I am not speaking of judgements as to what is useful or as to what is virtuous, for such judgements do require empirical premisses; I am speaking of judgements as to the intrinsic desirability of things.
The fact is that, in simple mathematical judgements such as 'two and two are four', and also in many judgements of logic, we can know the general proposition without inferring it from instances, although some instance is usually necessary to make clear to us what the general proposition means.