From the same author.

Those who do everything for their own sake alone practise selfishness, which is the greatest of evils, which produces unsociability, want of fellowship, unfriendliness, injustice, impiety, for nature has made man not like those beasts which love solitude, but like the gregarious beasts which live together like the most sociable of all creatures, that he may live not to himself alone, but also to his father, and to his mother, and to his brethren, and to his wife, and to his children, and to all his other relations and friends, and to those of the same borough as himself, and to those of the same tribe, and to his native country, and to his fellow countrymen, and to all mankind, and moreover to the different parts of the universe, and to the whole world, and much more to the Father and Creator of the world, for he must be (if at least he is really endowed with reason) sociable, loving the world, and loving God, that he may also be beloved by God.

About God being incomprehensible.

From the first book of the Questions arising in Exodus.

There are thousands and thousands, I do not say only of important matters, but also of those which appear to be most trivial, which escape the human intellect.

From the same author.

No one may so far yield to unreasonable folly as to boast that he has seen the invisible God.

About the doctrine that God has made angels to be guardians of us.

The words of Philo, from the first book of the Questions arising in Genesis.

As pillars support whole houses, so also do the divine powers support the whole world, and that most excellent and God-loving race of mankind.

About avoiding sin.

From the treatise on the Giants.

I think it absolutely impossible that no part of the soul should become tainted, not even the outer most and lowest parts of it, even if the man appears to be perfect among men.