The only thing we know about the future is that it will be different.

True happiness is... to enjoy the present, without anxious dependence upon the future.

Some of the best lessons we ever learn are learned from past mistakes. The error of the past is the wisdom and success of the future.

We should regret our mistakes and learn from them, but never carry them forward into the future with us.

Yesterday's the past, tomorrow's the future, but today is a gift. That's why it's called the present.

Education is not only a ladder of opportunity, but it is also an investment in our future.

Planning is bringing the future into the present so that you can do something about it now.

The future enters into us, in order to transform itself in us, long before it happens.

Times and conditions change so rapidly that we must keep our aim constantly focused on the future.

The future... seems to me no unified dream but a mince pie, long in the baking, never quite done.