Natura naturans—Nature formative.

Natura naturata—Nature passive; nature formed.

Natura nihil agit frustra—Nature does nothing in vain.

Natura non facit saltus—Nature makes no 10 leaps.

Natura, quam te colimus inviti quoque—O Nature, how we bow to thee even against our will. Sen.

Natural abilities are like natural plants, that need pruning by study; and studies themselves do give forth directions too much at large, except they be bounded in by experience. Bacon.

Natural abilities can almost make up for the want of every kind of cultivation, but no cultivation for want of natural abilities. Schopenhauer.

Natural knowledge is come at by the continuance and progress of learning and of liberty, and by particular persons attending to, comparing, and pursuing intimations scattered up and down it, which are overlooked and disregarded by the generality of the world. Bishop Butler.

Natural objects always did and do weaken, 15 deaden, and obliterate imagination in me. Wm. Blake.

Natural selection is the principle by which each slight variation, if useful, is preserved. Darwin.