Martin Seligman Bothered Quotations

I've been bothered about time generally and our tripartite division of time into past, present, and future. I think I know what the past is, and I think I know what future is, but I'm really not comfortable with the notion of present.

The word 'happiness' always bothered me, partly because it was scientifically unwieldy and meant a lot of different things to different people, and also because it's subjective.