The science of numbers ought to be preferred as an acquisition before all others, because of its necessity and because of the great secrets and other mysteries which there are in the properties of numbers. All sciences partake of it, and it has need of none.

In omni adversitate fortunæ, infelicissimum genus est infortunii fuisse felicem In every adversity of fortune, to have been happy is the most unhappy kind of misfortune.

So it follows that those who have reason have freedom to will or not to will, although this freedom is not equal in all of them. [...] human souls are more free when they persevere in the contemplation of the mind of God, less free when they descend to the corporeal, and even less free when they are entirely imprisoned in earthly flesh and blood.

Love has three kinds of origin, namely: suffering, friendship and love. A human love has a corporal and intellectual origin.

...Whose souls, albeit in a cloudy memory, yet seek back their good, but, like drunk men, know not the road home.

Nothing is miserable unless you think it so; and on the other hand, nothing brings happiness unless you are content with it.

He who has calmly reconciled his life to fate ... can look fortune in the face.