... moral certainty is certainty which is sufficient to regulate our behaviour, or which measures up to the certainty we have on matters relating to the conduct of life which we never normally doubt, though we know that it is possible, absolutely speaking, that they may be false.

Neither divine grace nor natural knowledge ever diminishes freedom.

Omnia apud me mathematica fiunt.

Illusory joy is often worth more than genuine sorrow.

The principal effect of the passions is that they incite and persuade the mind to will the events for which they prepared the body.

All is to be doubted.

For to be possessed of a vigorous mind is not enough; the prime requisite is rightly to apply it.