I have found by experience that they who have spent all their lives in cities, improve their talents but impair their virtues; and strengthen their minds but weaken their morals.

True friendship is like sound health; the value of it is seldom known until it is lost.

Nothing more completely baffles one who is full of trick and duplicity himself, than straight forward and simple integrity in another.

The soundest argument will produce no more conviction in an empty head than the most superficial declamation; as a feather and a guinea fall with equal velocity in a vacuum.

The art of declamation has been sinking in value from the moment that speakers were foolish enough to publish, and hearers wise enough to read.

None are so fond of secrets as those who do not mean to keep them; such persons covet secrets as a spendthrift covets money, for the purpose of circulation.

Much may be done in those little shreds and patches of time which every day produces, and which most men throw away.

Let those who would affect singularity with success first determine to be very virtuous, and they will be sure to be very singular.

Atheism is a system which can communicate neither warmth nor illumination, except from those fagots which your mistaken zeal has lighted up for its destruction.

Deliberate with caution, but act with decision and yield with graciousness, or oppose with firmness.

The study of mathematics, like the Nile, begins in minuteness but ends in magnificence.

I am a rapid-cycling manic-depressive, bi-polar one disorder, which means I can have thirty or forty episodes a year, and I used to have thirty to forty episodes a year.

The reason statins are so helpful is that even those who are trying their best to reach their target and still can't do it have something else to rely on.

It took me a long time to figure out that real big-time success comes from taking lots of small, ordinary steps in the right direction. And you can't ever take the next step until you take the first.

If ever anybody dedicated his whole life to the "enthusiasm for truth and justice" using this phrase in the good sense it was Diderot.

Nearly all human beings love, but nearly none know how to love.

Am I going to be able to provide a real home for her, man? An education? A real life? What's her college application going to look like: 'Raised on Spooky Island by wizard with GED, please help'?

No public funding for abortion; it imposes a view.

The science of love is the philosophy of the heart

Does it strike you, Mr. Keller, that we live every day in the science fiction of our youth?

Maybe come to think about it, that is the sign of an extrovert, in any event I have always from the earliest of ages found it difficult to wander into a restaurant on my own.