Knowing his Sufi classics
A man once asked Abe Lincoln what should be engraved on a honorary plaque for his office. He wanted Lincoln to furnish words of wisdom that would be helpful in all circumstances. Lincoln thought about it for a while, then said: "This too shall pass!"
You know that these words are in fact the advice given by shaykh Fariduddin 'Attar in Persian:
In ham migozarad