0.If I had eight hours to chop down a tree, I'd spend six hours sharpening my axe.
1.The loftier the building, the deeper the foundation must be laid.
2.A false sense of security is worse than being unsure.
3.640K is more memory than anyone will ever need.
4.Thus, what is of supreme importance in war is to attack the enemy's strategy
5.Security is just as strong as the weakest link.
6.To know your enemy, you must become your enemy.