Human judgment of human actions is true and void , that is to say, first true and then void.... The judgment of the word is true, the judgment in itself is void.... Only he who is a party can really judge, but as a party he cannot judge. Hence it follows that there is no possibility of judgment in the world, only a glimmer of it.
There is another way of disqualifying the metaphysicians.... Judge them by their works. What have they done for mankind beyond the spinning of airy fancies and the mistaking of their own shadows for gods?
The visible universe is subject to quantification, and is so by necessity. … Between you and me only reason will be the judge … since you proceed according to the rational method, so shall I. … I will also give reason and take it. … This generation has an innate vice. It can’t accept anything that has been discovered by a contemporary!
The more progress physical sciences make, the more they tend to enter the domain of mathematics, which is a kind of centre to which they all converge. We may even judge the degree of perfection to which a science has arrived by the facility with which it may be submitted to calculation.