Charles H. Townes

One of the things my family taught me - I think very important in religion and science - is that you must be ready to stand up for what you think. Decide what you really think is best, and stick with it.

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.

On the other end of the spectrum, these women who do live long enough to collect Social Security face the challenge of being disproportionately dependent on the Social Security system for retirement income.