To teach in order to lead others to faith is the task of every preacher and of each believer.

We are like children, who stand in need of masters to enlighten us and direct us; God has provided for this, by appointing his angels to be our teachers and guides.

The human mind may perceive truth only through thinking, as is clear from Augustine.

Moral science is better occupied when treating of friendship than of justice.

How is it they live in such harmony the billions of stars - when most men can barely go a minute without declaring war in their minds about someone they know.

Beware the man of a single book.

There must be must be a first mover existing above all – and this we call God.