1. Next morning we visited sixty-three more Cambridge colleges and
after lunch I said I was going to my room to lie down.

P.G. Wodehouse, Carry on Jeeves 'without the option'

2. Now we come to the pons asinorum. If A is untrue, then the hook is
true whatever the truth of B. The reason for this is that the hook
guarantees only that A cannot be true and B false. However, this
restriction removes the hook from all application to truth or reason,
and reduces it to a mathematical symbol. There are no circumstances in
which 'A therefore B' or 'If A then B' automatically become true
statements whenever A is shown to be false. If the hook does not cover
either the consequent or the conditional relationship, but one of its
own invention, then its only applied function must be either as a
parlour game or as a liars' charter. Formal logic, like so many things
studied in the universities, must surely be a colossal waste of time.

Auberon Waugh, Will this do?

3. Many fathers of comparably modest incomes would have looked upon a
clever son as a route to riches. My son the financier, my son the
barrister, my son the accountant.  Tom stood quite ready and without
rancour to explain the child away as my son the loopy mathematician
with the scurfy hair and bottle-end spectacles.

Stephen Fry, The liar

4. Sometimes a student would present himself, and Dr P.  would not
recognise him; or, specifically, would not recognise his face. The
moment the student spoke, he would be recognised by his voice. Such
incidents multiplies, causing embarrassment, perplexity, fear -- and,
sometimes, comedy. For not only did Dr P. increasingly fail to see
faces, but he saw faces when there were no faces to see: genially,
Magoo-like, when in the street, he might pat the heads of
water-hydrants and parking-meters, taking these to be the heads of
children; he would amiably address carved knobs on the furniture, and
be astounded when they did not reply.  At first these odd mistakes
were laughed off as jokes, not least by Dr P. himself. Had he not
always had a quirky sense of humour, and been given to Zen-like
paradoxes and jests?

Oliver Sacks, The man who mistook his wife for a hat

5. 'It's going to be a thirty-mile stride at a steady four and a half
miles an hour, which, with half an hour for lunch, will get me back
here before six. I'm going to drug my body and mind into apathy by
hard exercise. Then I shall have a hot bath and a good dinner, and
after that, when I'm properly fallow, I may get the revelation. The
mistake I made yesterday was trying to _think_.'

 It was a gleaming blustery March morning, the very weather
for a walk, and I would have liked to accompany him.

John Buchan, The Three Hostages

6. Upon this famous Wednesday afternoon
   Wickets had fallen fast before the onslaught
   Of one who was, as Euclid might have put it,
   No length, or break, but only pace; and pace
   Had been too much for nine of them already.
   Then entered Tompkins the invincible,
   Took guard as usual, "just outside the leg,"
   Looked around the field, and mentally decided
   To die - or raise his average to two.

A.A. Milne, An average man

7. Those who cannot cope with mathematics are not fully human. At best
they are tolerable sub-humans who have been taught to bathe and not
make messes in the house."

Robert Heinlein, From the Notebook of Lazarus Long 

8. I was always very allergic to Latin when I was at Harrow.  Never
could see any point in it.  Mensa, a table. Mensa, O table.  Whoever
wants to talk to a table in any language?  If I'm reduced to talking
to tables I'll talk to them in English.  Mensa, O table! I think Latin
is a wooden-headed language.

Compton Mackenzie, The rival monster.

9. Religion makes beauty enchanting;
   And even where beauty is wanting,
   The temper and mind,
   Religion-refined,
   Will shine through the veil with sweet lustre.

Patrick Bronte

10. -- and it was handsome to see him chalk off
mathematical nightmares on the blackboard that would
stump the angels themselves, and do it like nothing,
too -- all about eclipses, and comets, and solstices, and
constellations, and mean time, and sidereal time, and
dinner time, and bedtime, and every other imaginable
thing above the clouds or under them that you could
harry or bullyrag an enemy with and make him wish
he hadn't come --

Mark Twain, A Connecticut Yankee in King Arthur's Court