With National Procrastination Week well underway (we're exaggerating a bit; today is only the second day), we're refusing to put off (any longer) a look at words familiar to those fond of putting off til tomorrow what they could have done yesterday. (来源：英语杂志 http://www.EnglishCN.com)

Procrastinate implies blameworthy delay, especially through laziness or apathy, while delay implies a putting off, as of a beginning or departure, without any connotation of blame.

To put off can mean to "hold back to a later time;" it can mean "to induce to wait;" and it can mean to "disconcert" or "repel."

As disconcerting or repellent as some folks find procrastination, its existence has inspired a wise word or two.

Roman statesman Seneca pointed out "It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult." American philosopher William James urged folks to action with this practical advice: "Nothing is so fatiguing as the eternal hanging on of an unfinished task." And the prolific British author J.R.R. Tolkien pushed on with these words: "It's a job that's never started that takes the longest to finish."