“Because your own strength is unequal to the task, do not assume that it is beyond the powers of man; but if anything is within the powers and province of man, believe that it is within your own compass also. Marcus Aurelius”

“It is in your power to withdraw yourself whenever you desire. Perfect tranquility within consists in the good ordering of the mind, the realm of your own.”

“If you do the task before you always adhering to strict reason with zeal and energy and yet with humanity, disregarding all lesser ends and keeping the divinity within you pure and upright, as though you were even now faced with its recall - if you hold steadily to this, staying for nothing and shrinking from nothing, only seeking in each passing action a conformity with nature and in each word and utterance a fearless truthfulness, then the good life shall be yours. And from this course no man has the power to hold you back.”

“If you are pained by external things, it is not they that disturb you, but your own judgement of them. And it is in your power to wipe out that judgement now.”

“It is within our power not to make a judgement about something, and so not disturb our minds; for nothing in itself possesses the power to form our judgements.”

“You have power over your mind - not outside events. Realize this, and you will find strength.”

“Be your own master, and look at things as a man, as a human being, as a citizen, as a mortal creature.”