Marcus Aurelius
Author: Marcus Aurelius
Publisher: Penguin Great Ideas (2005)

Thus, with every man, imagine his counterpart; and then go on to the reflection, 'Where are they all now?' Nowhere - or anywhere. In this way , you will grow accustomed to looking on all that is mortal as vapour and nothingness; and the more so, if you will also remember that things once changed are for ever past recall. Then why struggle and strain, instead of being content to live out your little span in seemly fashion? Think what materials and possibilities for good you are rejecting; since what are all your tribulations but exercises for the training of your reason, once it has learnt to see the truths of life in a proper philosophic light? Be patient, then, until you have made them familiar and natural to yourself, in the same way as a strong stomach can assimilate every kind of diet, or a bright fire turn anything that is cast upon it into heat and flame.