Was reading this article and got inspired to formulate my own version.
The 3 Constants, in no particular order of importance, are:
1. Hard Work. Doing quality work greases the wheels of the universe and makes good things happen, dreams come true, and plans reach fruition. On a deeper level, it also helps you sidestep the perils of identity-based thinking as opposed to becoming by doing. Do something, do not be something. Tell a story with action. Stack up those accompliments and merits by working for them.
2. Exercise. The mind and the body are inextricably connected. Want to look good, feel good, and live longer? If you can do only one thing in a day, make it exercise.
3. Enjoy every moment of life. Something I am struggling to do, but a good signpost to follow. The reason being that if you don't enjoy your life, you tend to start overanalyzing and over-planning in order to finally crack the puzzle and get to Happiness. Enjoy life, have some plans but don't overcomplicate, and work hard. Without enjoyment of the now, you will not be able to work with focus because you will want to go and rehaul your plans all the time. Classic procrastiplanning pattern.