A gentleman would be ashamed should his deeds not match his words.
The gem cannot be polished without friction nor man without trials.
You can successfully force people to follow a certain course, but you cannot force them to understand it.
A father's and a mother's age must be borne in mind; with joy on the one hand, fear on the other.
Our headstrong passions shut the door of our souls against God.
What you do not wish upon yourself, extend not to others.