Knowledge is an essential necessity of God and is inseparable from Him.

Power is an essential necessity of God and is inseparable from Him.

The rays are the essential necessity of the sun and are inseparable from it.

And Cowper achieved this without losing sight for one moment of the essential necessity for personal worth:

Mind is the perfection of the spirit, and is its essential quality, as the sun's rays are the essential necessity of the sun.

They are like the sun which is luminous in itself: the light is its essential necessity; it does not receive light from any other star.

Drum into their ears the truth that life is a battle, and only the brave "win out," and health is the one essential necessity.

Thy clear-sighted spirit was to have but a glimpse of one of the most essential necessities of the Serbian people.