No harm's done to history by making it something someone would want to read.

You can't be a full participant in our democracy if you don't know our history.

Develop and protect a moral sensibility and demonstrate the character to apply it. Dream big. Work hard. Think for yourself. Love everything you love, everyone you love, with all your might. And do so, please, with a sense of urgency, for every tick of the clock subtracts from fewer and fewer...

In time I began to understand that it's when you start writing that you really find out what you don't know and need to know.

The truth isn't just the facts. You can have all the facts imaginable and miss the truth, just as you can have facts missing or some wrong, and reach the larger truth.

There are innumerable writing problems in an extended work. One book took a little more than six years. You, the writer, change in six years. The life around you changes. Your family changes. They grow up. They move away. The world is changing. You're also learning more about the subject. By the time you're writing the last chapters of the book, you know much more than you did when you started at the beginning.

Exercise free will and creative, independent thought not for the satisfactions they will bring you, but for the good they will do others, the rest of the 6.8 billion–and those who will follow them. And then you too will discover the great and curious truth of the human experience is that selflessness is the best thing you can do for yourself. The sweetest joys of life, then, come only with the recognition that you’re not special. Because everyone is.