We feel, conceive or reason, laugh or weep; Embrace fond woe, or cast our cares away:

It is the same!—For, be it joy or sorrow,
The path of its departure still is free:
Man’s yesterday may ne’er be like his morrow;
Nought may endure but Mutability.

–“Mutability,”
Percy Bysshe Shelley

Which sentence best describes the idea expressed in the final stanza?

People are weak and fearful.
Life is fleeting and always changing.
Life is pleasant and long-lasting.
People are in control of their emotions.