We must take care to live not merely a long life, but a full one; for living a long life requires only good fortune, but living a full life requires character. Long is the life that is fully lived; it is fulfilled only when the mind supplies its own good qualities and empowers itself from within.

The mind is a matter over every kind of fortune; itself acts in both ways, being the cause of its own happiness and misery.

I would rather be sick than idle.

Shun no toil to make yourself remarkable by some talent or other.

It's unknown the place and uncertain the time where death awaits you; thus you must expect death to find you, every time, at every place.

Death is the wish of some, the relief of many, and the end of all. It sets the slave at liberty, carries the banished man home, and places all mortals on the same level, insomuch that life itself were a punishment without it.

Throughout the whole of life one must continue to learn to live and what will amaze you even more, throughout life you must learn to die. Seneca (Roman philosopher)