The fish only knows that it lives in the water, after it is already on the river bank. Without our awareness of another world out there, it would never occur to us to change.

You can't expect to meet the challenges of today with yesterday's tools and expect to be in business tomorrow.

With me a change of trouble is as good as a vacation.

Remember, no human condition is ever permanent. Then you will not be overjoyed in good fortune nor too scornful in misfortune.

It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.

Be not the first by which a new thing is tried, or the last to lay the old aside.

Nothing that I can do will change the structure of the universe. But maybe, by raising my voice I can help the greatest of all causes -- goodwill among men and peace on earth.

The true past departs not, no truth or goodness realized by man ever dies, or can die; but all is still here, and, recognized or not, lives and works through endless change.

What I possess I would gladly retain. Change amuses the mind, yet scarcely profits.

People can cry much easier than they can change.