Countries are well cultivated, not as they are fertile, but as they are free. [ Montesquieu ]

What was your dream? It seemed to me that a woman in white raiment, graceful and fair to look upon, came towards me and calling me by name said: On the third day, Socrates, thou shalt reach the coast of fertile Phthia. [ Plato ]

The richest genius, like the most fertile soil, when uncultivated, shoots up into the rankest weeds; and instead of vines and olives for the pleasure and use of man, produces to its slothful owner the most abundant crop of poisons. [ Hume ]

His eloquent tongue so well seconds his fertile invention that no one speaks better when suddenly called forth. His attention never languishes; his mind is always before his words; his memory has all its stock so turned into ready money that, without hesitation or delay, it supplies whatever the occasion may require. [ Erasmus ]