Do not disturb yourself by picturing your life as a whole; do not assemble in your mind the many and varied troubles which have come to you in the past and will come again in the future, but ask yourself with regard to every present difficulty: 'What is there in this that is unbearable and beyond endurance?'
Marcus AureliusOnly to the rational animal is it given to follow voluntarily what happens; but simply to follow is a necessity imposed on all.
Marcus AureliusLook within, for within is the wellspring of virtue, which will not cease flowing, if you cease not from digging.
Marcus Aurelius