It is exercise alone that supports the spirits, and keeps the mind in vigor.
Never injure a friend, even in jest.
Death approaches, which is always impending like the stone over Tantalus: then comes superstition with which he who is imbued can never have peace of mind.
I hope that the memory of our friendship will be everlasting.
To be ignorant of the past is to be forever a child.
A wise man does nothing by constraint.