Mark Twain

Don’t say the old lady screamed—bring her on and let her scream.

Truth is the most valuable thing we have. Let us economize it.

The rule is perfect: in all matters of opinion our adversaries are insane.

Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbour. Catch the trade winds in sails. Explore. Dream. Discover.

A home without a cat—and a well-fed, well-petted and properly revered cat—may be a perfect home, perhaps, but how can it prove its title?

Of all God's creatures there is only one that cannot be made the slave of the lash; that one is the cat. If man could be crossed with the cat, it would improve man, but it would deteriorate the cat.

If man were crossed with a cat, it would improve man but deteriorate the cat

Patriotism is supporting your country all the time, and your government when it deserves it.  

When we remember we are all mad, the mysteries disappear and life stands explained.

I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't…The pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.