“Long experience has taught me this about the status of mankind with regard to matters requiring thought.”

You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.

The laws of nature are written by the hand of God in the language of mathematics.

Being infinitely amazed, so do I give thanks to God, Who has been pleased to make me the first observer of marvelous things, unrevealed to bygone ages.

The increase of known truths stimulates the investigation, establishment, and growth of the arts.

Where the senses fail us, reason must step in.

The vain presumption of understanding everything can have no other basis than never having understood anything.

You may force me to say what you wish; you may revile me for saying what I do. But it moves.

See now the power of truth.

In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.

Who would dare assert that we know all there is to be known?

It is surely harmful to souls to make it a heresy to believe what is proved.

Knowing thyself, that is the greatest wisdom.

Philosophy is written in that great book which ever lies before our eyes. I mean the universe, but we cannot understand it if we do not first learn the language and grasp the symbols, in which it is written.

The nature of the human mind is such that unless it is stimulated by images of things acting upon it from without, all remembrance of them passes easily away.

We cannot teach people anything; we can only help them discover it within themselves.

Holy Scripture could never lie or err…its decrees are of absolute and inviolable truth.

Experience is something you don’t get until just after you need it.

No fear or shame in the dignity of your experience, language, and knowledge.

I don’t know about changing my perspective, because motherhood is such a glorious blessing and I am very thankful for that. It is such a beautiful experience. I so strongly recommend it. It’s bliss, love, and fulfillment of another level.

If I write a book where all I’ve ever experienced is success, people won’t take a positive lesson from it. In being candid, I have to own up to my own failures, both in my marriage and in my work environment.

Nothing speaks like results. If you want to build the kind of credibility that connects with people, then deliver results before you deliver a message. Get out and do what you advise others to do. Communicate from experience.

I don’t pretend to be wise, but I am observing, and I see a great deal more than you’d imagine. I’m interested in other people’s experiences and inconsistencies, and, though I can’t explain, I remember and use them for my own benefit.

My look and my character come from my experiences as a child. I wasn’t allowed to have girl toys, and I grew up poor. I also had a rough relationship with my stepdad.

In my experience, good executives don’t make mistakes.