| word | para | meaning |
| activity | 49 | activity is attributed to a Monad in so far as it has distinct perceptions |
| appetition | 15 | the activity of the internal principle which produces change or passage from one perception to another |
| axiom | 35 | a primary principle, which cannot and need not be proven |
| autarcheia | 18 | self sufficiency |
| compound | 2 | a collection or aggregatum of simple things |
| contingent truth | 33 | a truth whose opposite is possible |
| contradiction | 31 | principle, in virtue of which we judge false
that which involves a contradiction, and true that which is opposed or contradictory to the false |
| entelechy | 18 | something having in it "a certain perfection"? |
| God | 38 | the final reason of things, a necessary substance in which the variety of particular changes exists
only eminently |
| monad | 1 | simple substance |
| necessary truth | 33 | a truth whose reason can be found by analysis, resolving it into more simple ideas and truths, until we come to those which are
primary |
| outwardly | 49 | a created thing is said to act outwardly in so far as it has perfection |
| passivity | 49 | passivity is attributed to a Monad in so far as its perceptions are confused |
| perception | 14 | the passing condition, which involves and represents a multiplicity in the unit |
| postulate | 35 | a primary principle, which cannot and need not be proven |
| quality | 8 | that which differentiates monads |
| simple | 1 | without parts |
| simple ideas | 35 | ideas of which no definition can be given |
| rational soul | 29 | soul having knowledge of necessary and eternal truths |
| soul | 19 | something having distinct perception and desires accompanied by memory |
| suffer | 49 | a created thing is said to suffer in relation to another in so far as it is imperfect |
| sufficient reason | 32 | principle, in virtue of which we hold that there can be no fact real or existing, no statement
true, unless there be a sufficient reason, why it should be so and not otherwise |
| truth of reason | 33 | truths of reasoning are necessary and their opposite is impossible |
| truth of fact | 33 | truths of fact are contingent and their opposite is possible |
| unit | 13 | that which is simple |
| window | 7 | way in or out |