If thou workest at that which is before thee, following right reason seriously, vigorously, calmly, without allowing anything else to distract thee, but keeping thy divine part pure, as if thou shouldst be bound to give it back immediately; if thou holdest to this, expecting nothing, fearing nothing, but satisfied with thy present activity according to nature, and with heroic truth in every word and sound which thou utterest, thou wilt live happy. And there is no man who is able to prevent this.
Take me and cast me where thou wilt; for there I shall keep my divine part tranquil, that is, content, if it can feel and act conformably to its proper constitution. Is this change of place sufficient reason why my soul should be unhappy and worse than it was, depressed, expanded, shrinking, affrighted? And what wilt thou find which is sufficient reason for this?