External References
- "PC Checkup Service". Symantec. Retrieved 2009-02-19.
Read more about this topic: Norton PC Checkup
Famous quotes containing the word external:
“When a person hasn’t in him that which is higher and stronger than all external influences, it is enough for him to catch a good cold in order to lose his equilibrium and begin to see an owl in every bird, to hear a dog’s bark in every sound.”
—Anton Pavlovich Chekhov (1860–1904)