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86. What the Intellect Knows in Material Things

1. In this fife in which man's soul and body aresubstantially united, the object of the human intellect is theessences of material things. The intellect knows such essencesin universal by acquiring ideas or concepts in the manneralready described. By a second act which is a kind of reflex act orreflection, the intellect knows material things inindividual. The intellect inquires, in this bodily world,"What kind of thing is that?" When it knows thekind or essence, it can advert to the individual things and say,"Yes, these are things of that kind." Primarily anddirectly, the intellect knows universals; secondarily and reflexly,the intellect knows singulars, that is, individual materialthings.

2. The human intellect is a created and finite power.Therefore it cannot perfectly know the infinite. The intellect canknow potential infinity, which means unlimitedpossibility. The intellect itself has potential infinity inasmuchas it is never filled up, but can always know something more. Butthe intellect cannot know perfectly actual infinity.

3. Contingent things (that is, changeable things; thingsthat have not in themselves a necessity for existing) are thedirect object of sense-knowledge. The intellect, by itssecondary and reflex act, can know singulars; hence theintellect can know contingent things. The intellect also knows thenecessary and universal principles that are back of contingentthings, such, for instance, as the truth that movement alwaysrequires a mover.

4. The human intellect cannot know the future except incause. To know a thing in cause is to foresee the effects whichwill come from existing and necessitating causes. Thus astronomersknow, even centuries before the event, the exact time at which aneclipse of the sun is to occur. To know the future, not merely incause, but in itself, is beyond creatural power; suchknowledge belongs to God alone. The human intellect has anabundance of conjectural knowledge of the future; such knowledge isa reasonable guess or supposition; it is usually founded uponexperience of what has happened in the past.

"It is well to choose some one good devotion, and to stick to it, and never to abandon it."
St Philip Neri

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"Before a man chooses his confessor, he ought to think well about it, and pray about it also; but when he has once chosen, he ought not to change, except for most urgent reasons, but put the utmost confidence in his director."
St Philip Neri

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"Lord, here burn, here cut, and dry up in me all that hinders me from going to You, that You may spare me in eternity."
St Louis Bertrand

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