The essence of all art is to have pleasure in giving pleasure.
Know that the essence of a person, as such, is quite impossible to perceive without his material embodiment (...) This is because our five senses and our imagination do not offer us anything more than the revelation of the actions of the essence, but not the essence itself.
Gravity is of the very Essence of Imposture. It does not only make us mistake other Things, but is apt perpetually almost to mistake it-self.
Eternal Power! Grant me through obvious clouds one transient gleam Of thy bright essence in my dying hour!
Never forget the essence of your spark!
I understand Being in all and over all, as there is nothing without participation in Being, and there is no being without Essence. Thus nothing can be free of the Divine Presence.
In physics you have a bit of everything: you need to be good at solving puzzles, but you also need to see the big picture, to separate important from unimportant things, to quickly understand new materials and quickly see the essence of a paper.
It was Africa distilled up through six thousand feet like the strong and refined essence of a continent... The views were immensely wide everything that you saw made for greatness and freedom, and unequalled nobility.
Life, liberty, and the pursuit of property were just what Aristotle did not talk about. They are the conditions of happiness; but the essence of happiness, according to Aristotle, is virtue. So the moderns decided to deal with the conditions and to let happiness take care of itself.
Then dawns the Invisible; the Unseen its truth reveals; My outward sense is gone, my inward essence feels Its wings are almost free, its home, its harbour found; Measuring the gulf, it stoops and dares the final bound
The complexity of software is an essential property, not an accidental one. Hence, descriptions of a software entity that abstract away its complexity often abstracts away its essence.
Even perfect program verification can only establish that a program meets its specification.  Much of the essence of building a program is in fact the debugging of the specification.
History is the essence of innumerable biographies.
It is the essence of dignity to pretend to desire what you cannot prevent.
The essence of justice is mercy.