Only put off until tomorrow ...

Only put off until tomorrow what you are willing to die having left undone.
Only put off until tomorrow what you are willing to die having left undone.

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

Computers are useless. They can only give you answers.
Everything you can imagine is real.
I begin with an idea and then it becomes something else.
I am always doing that which I cannot do, in order that I may learn how to do it.
He can who thinks he can, and he can't who thinks he can't. This is an inexorable, indisputable law.