For this to be a true statement, what actually must happen is the return to a Constitutional Republic. Reversing and eliminating unconstitutional laws and regulations. So, it's not so much that the best is yet to come, per se. It's looking forward the the return of the past, best of times. Where there was rule of law. When government had only the people's best interest in mind when passing laws. When people had their individual freedoms, rights, and liberties intact. When "free" unburdened by government, we the people, were, are the powerhouse that made the US, made us, the best.The Best is yet to come!
... the pursuit of Happiness.
They tried taking that one away in 1920 and had to give it back 13 years later.