Ptolemy, Claudius, GrecoEgyptian astronomer, geographer, and geometer
(fl. 127 -151), 216 , 516 , 530 , 549
public good, 630 , 631
public interests, 614 , 775 ,. 778
Punic Wars, 249 , 271 , 278 , 279 , 399
Punjab, 218 , 222
Pure Being, 733 , 735
pure heart, 92
pure reason, 709 , 787
purification, 17 , 21 , 33 , 43 , 91 , 137 , 138
Puritan(s), -ism, 89 , 120 , 340 *, 434 , 481 , 498 , 555 , 624
purgatory, 408 , 502 , 514 , 523
purpose, 55 , 58 , 67 , 72 , 148 , 538 ; and Aristotle, 73 , 182 , 186 , 205
pramids, 4 , 139 , 192 , 208
Pyrrho, Greek philosopher ( 367?-275 B.C.), 233 -235
Pythagoras, Greek philosopher and mathema-
tician (fl. 540-510 B.C.), 28 , 29 -37, 39 -40, 48 , 53 , 56 , 57 , 63 , 289 ,
370 ; and astronomy, 213 , 530 ; and Heraclitus, 39 -40, 41 ; influence of,
37 , 476 ; and mathematics, 48 , 209 , 820 , 828 , 831 ; and mysticism, 19 ,
40 ; and Nietzsche, 761 ; and Plato, 105 , 118 , 120 , 126 ; and soul, 141 ,
170 ; quoted, 32 , 35. See also Neo-Pythagoreanism; Pythagorean (s)
Pythagorean order, 31 32, 147
Pythagorean theorem, 35 , 209
Pythagorean (s), -ism, 40 , 63 , 131 , 143 , 828 -829; and astronomy, 131 ,
213 , 214 , 526 , 529 ; and mathematics, 137 , 147 , 209 , 210 ; and Plato,
106 , 144 , 159 ; and Plotinus, 287 ; and politics, 224 , 229 , 230 ; and soul,
200
Pythocles, disciple of Epicurus, 244
Quadi, 343
Quakers, 363 , 579
quality, 200 , 663 , 708 , 745 746
quantity, 28 , 200 , 708
quantum mechanics, 539 , 540 , 832