1. “Life’s Too Short”
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”
no day but to·day \no dā bət tə-ˈdā\
You might as well do it today. See: Rent.
3. “Que Sera Sera”
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”
c’est la vie \se-lä-vē\
that’s life, that’s how things happen. See: B*Witched.
5. “Seize The Day”
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”
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”
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”
Now or never \ˈnau̇ ˈȯrˈne-vər\
Do it now or not at all.
9. “It Is What It Is”
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.