To know what people really think, pay regard to what they do, rather than what they say. - René Descartes

The brutes, which have only their bodies to conserve, are continually occupied in seeking sources of nourishment; but men, of whom the chief part is the mind, ought to make the search after wisdom their principal care, for wisdom is the true nourishment of the mind; and I feel assured, moreover, that there are very many who would not fail in the search, if they would but hope for success in it, and knew the degree of their capabilities for it.

Έκρινα ότι τίποτα γερό δεν μπορούσε να έχει χριστεί πάνω σε τόσο ασταθή θεμέλια

There is such a strong connection between body and soul that thoughts that accompanied certain movements of our body at the beginning of our lives, go on accompanying them later.