And when statesman or others worry [the scientist] too much, then he should leave with his possessions.

Those who study the stars have God for a teacher.

The mouse is wise, but the cat is wiser.

May I not seem to have lived in vain.

An astronomer must be cosmopolitan, because ignorant statesmen cannot be expected to value their services

Now it is quite clear to me that there are no solid spheres in the heavens, and those that have been devised by the authors to save the appearances, exist only in the imagination.

So mathematical truth prefers simple words since the language of truth is itself simple.

Behold, directly overhead, a certain strange star was suddenly seen . . . Amazed, and as if astonished and stupified, I stood still

When I had satisfied myself that no star of that kind had ever shone before, I was led into such perplexity by the unbelievability of the thing that I began to doubt the faith of my own eyes.

There is something eccentric in the orbit of Mars.

It was not just the Church that resisted the heliocentrism of Copernicus.

Wherever you go, go with love, but never leave hope behind.

The Holy Spirit builds on the smooth ground of humility. That's why God will tear you down in order to build you back up.

Conventional wisdom won't provide continual growth.

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We have to acknowledge the progress we made, but understand that we still have a long way to go. That things are better, but still not good enough.

When we deny our stories, They define us. When we own our stories, we get to write the ending.

The thing I miss about Air Force One is they don't lose my luggage.

There's a lot of us who do not accept the culture of the bubbles.

Life is a precious gift, but we realize this only when we give it to others.

Working 14 hours a day until you're 55 and missing your kids growing up is not what I would consider a recipe for happiness.