Devote the rest of your life to making progress. - Epictetus

Don't seek to have events happen as you wish, but wish them to happen as they do happen, and all will be well with you.

Be happy when you find that doctrines you have learned and analysed are being tested by real events. If you’ve succeeded in removing or reducing the tendency to be mean and critical, or thoughtless, or foul-mouthed, or careless, or nonchalant; if old interests no longer engage you, at least not to the same extent; then every day can be a feast day – today because you acquitted yourself well in one set of circumstances, tomorrow because of another.

The soul is like a bowl of water, with the soul’s impressions like the rays of light that strike the water. [21] Now, if the water is disturbed, the light appears to be disturbed together with it – though of course it is not.