Hold fast to the best of the ...

Hold fast to the best of the past and move fast to the best of the future.
Hold fast to the best of the past and move fast to the best of the future.

Quotes from the same author

Things do not happen. Things are made to happen.
Blight has descended on our regulatory agencies - and a dry rot, beginning in Washington, is seeping into every corner of America - in the payola mentality, the expense account way of life, the confusion between what is legal and what is right.
The greater our knowledge increases the more our ignorance unfolds.
As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.
Change is the law of life. And those who look only to the past or present are certain to miss the future.