1. "Life's Too Short" Via shutterstock.com life is too short \ˈlīf is tü shȯrt\Life is short and there is no point in wasting it on things like worry, hatred, vengeance, etc. LITS, for short. 2. "No Day But Today" Via shutterstock.com no day but to·day \no dā bət tə-ˈdā\You might as well do it today. See: Rent. 3. "Que Sera Sera" Via shutterstock.com que se·ra se·ra /ˈkeɪ sərɑː sərɑː/What will be, will be. Used to convey a fatalistic recognition that future events are out of the speaker’s control. 4. "C'est la vie" Via shutterstock.com c'est la vie \se-lä-vē\that's life, that's how things happen. See: B*Witched. 5. "Seize The Day" Via shutterstock.com seize the day \seez the dey\To enjoy the present and not worry about the future; to live for the moment. To make the most of today by achieving fulfillment in a philosophical or spiritual sense. See: Newsies. 6. "Carpe Diem" Via shutterstock.com car·pe di·em \ˈkär-pe-ˈdē-ˌem, -ˈdī-, -əm\ The enjoyment of the pleasures of the moment without concern for the future. See also: Seize The Day. 7. "When In Rome" Via shutterstock.com when in rome \ˈhwenˈin ˈrōm\Short for "When in Rome, do as the Romans do." Generally used as an excuse to do something out of the ordinary. 8. "Now Or Never" Via shutterstock.com Now or never \ˈnau̇ ˈȯrˈne-vər\Do it now or not at all. 9. "It Is What It Is" Via shutterstock.com it is what it is \ˈit is (h)wət ˈit is\The definition can mean many things, in this case: "whatever". Be warned, though: this expression is better than saying YOLO, but not by much. 10. "You Only Live Once" Via shutterstock.com you on·ly live once \ˈyü ˈōn-lēˈlivˈwən(t)s\What YOLO actually stands for. I know the phrase is five whole syllables instead of two, but I strongly recommend saying this instead as to not look and/or sound like a fool.