“ Nothing is necessitated whose opposite is possible. ”
...as far as we are capable of knowledge we sin in neglecting to acquire it...
~ Gottfried Wilhelm Leibniz
For all bodies are in perpetual flux like rivers, and parts are passing in and out of them continually.
…every feeling is the perception of a truth...
The mind leans on [innate] principles every moment, but it does not come so easily to distinguish them and to represent them distinctly and separately, because that demands great attention to its acts, and the majority of people, little accustomed to think, has little of it.