No decisive proofs can ever be produced against this authority; nor is it possible for you to compute, estimate, and compare, all the pains and all the pleasures in the lives of all men and of all animals: And thus, by your resting the whole system of religion on a point, which, from its very nature, must for ever be uncertain, you tacitly confess, that that system is equally uncertain.
But allowing you what never will be believed, at least what you never possibly can prove, that animal, or at least human happiness, in this life, exceeds its misery, you have yet done nothing: For this is not, by any means, what we expect from infinite power, infinite wisdom, and infinite goodness.

Why is there any misery at all in the world?
Not by chance surely.

From some cause then.

Is it from the intention of the Deity?
But he is perfectly benevolent.

Is it contrary to his intention?
But he is almighty.