Cautiousness in judgment is nowadays to be recommended to each and every one: if we gained only one incontestable truth every ten years from each of our philosophical writers the harvest we reaped would be sufficient. … To grow wiser means to learn to know better and better the faults to which this instrument with which we feel and judge can be subject.

A 38 - Aphorisms (1765-1799) - Notebook A (1765-1770)