Once a word has been allowed to escape, it cannot be recalled.
Drop the question what tomorrow may bring, and count as profit every day that fate allows you.
Think to yourself that every day is your last; the hour to which you do not look forward will come as a welcome surprise.
He who postpones the hour of living rightly is like the rustic who waits for the river to run out before he crosses.
Seize the day, put no trust in the morrow!