And to show that , in point of fact , there is a knowledge which advances neither by unmixed immediacy nor by unmixed mediation , we can point to the example of logic and the whole of philosophy .

但是要指出事实上有一种知识的进展，既不起于直接性，也不起于间接性，这就须以逻辑学自身和全部哲学作为样本。