Just as the body has its progress and decadence, so also has the mind, and, therefore, the mind is not the soul, because the soul can neither decay nor degenerate.
Wonderful nature has a double meaning, which dazzles great minds and blinds uncultivated souls. When man is ignorant, when the desert is filled with visions, the darkness of solitude is added to the darkness of intelligence; hence, in man, the possibilities of perdition
Two characteristic marks have above all others been recognized as distinguishing that which has soul in it from that which has not - movement and sensation.
If I am mistaken in my opinion that the human soul is immortal, I willingly err; nor would I have this pleasant error extorted from me; and if, as some minute philosophers suppose, death should deprive me of my being, I need not fear the raillery of those pretended philosophers when they are no more.
We must never fear robbers or murderers. They are dangers from outside, small dangers. It is ourselves we have to fear. Prejudice is the real robber, vice the real murderer. Why should we be troubled by a threat to our person or our pocket? What we have to beware of is the threat to our souls'.