You can not escape the responsibility of tomorrow by evading it today.
When you can think of yesterday without regret and tomorrow without fear, you are near contentment.
Tomorrow is promised to no one.
Tomorrow is a new day; begin it well and serenely and with too high a spirit to be encumbered with your old nonsense.
Your children are not your children. They are the sons and daughters of Life's longing for itself... You may house their bodies but not their souls, for their souls dwell in the house of tomorrow, which you cannot visit, not even in your dreams.
There'll be bluebirds over the white cliffs of Dover, Tomorrow, just you wait and see.
Never do today what you can put off till tomorrow. Delay may give clearer light as to what is best to be done.
Decide in your heart of hearts what really excites and challenges you, and start moving your life in that direction. Every decision you make, from what you eat to what you do with your time tonight, turns you into who you are tomorrow, and the day after that. Look at who you want to be, and start sculpting yourself into that person. You may not get exactly where you thought you'd be, but you will be doing things that suit you in a profession you believe in. Don't let life randomly kick you into the adult you don't want to become.
You think Nature is some Disney movie? Nature is a killer. Nature is a bitch. It's feeding time out there 24 hours a day, every step that you take is a gamble with death. If it isn't getting hit with lightning today, it's an earthquake tomorrow or some deer tick carrying Lime disease. Either way, you're ending up on the wrong end of the food chain.
Live as if you were to die tomorrow. Learn as if you were to live forever.