A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Carl Sagan Exception To The Rule Quotations

Carl Sagan Quotes about:

Exception To The Rule Quotes from:

Mass Extinction Quotes

Extinction is the rule. Survival is the exception.

Quotes from famous authors

Popular tags & topics