"Do not disturb yourself by picturing your entire life. Do not let your thoughts range over all the various troubles which you have met and will meet, but in every present case, ask yourself, 'What is …"

"Remember that man lives only in the present, in this fleeting instant; all the rest of his life is either past and gone, or still uncertain."

"Live out your life in peace, be silent, and be content with what is given you."

"Do not disturb yourself by picturing your life as a whole; do not embrace in your imagination all the various troubles which are likely to befall you, but rather, at every accession of trouble, ask yo…"

"It is in your power to withdraw yourself whenever you desire. Perfect tranquility is nothing more than the good ordering of the mind, the self-sufficiency which is within."