Alcohol may be man's worst enemy, but the bible says love your enemy.
Corruption is the enemy of development, and of good governance. It must be got rid of. Both the government and the people at large must come together to achieve this national objective.
If you know the enemy and know yourself you need not fear the results of a hundred battles.
I appeal to you as a soldier to spare me the humiliation of seeing my regiment march to meet the enemy and I not share its dangers.
The supreme art of war is to subdue the enemy without fighting.
It was my duty to shoot the enemy, and I don't regret it. My regrets are for the people I couldn't save: Marines, soldiers, buddies. I'm not naive, and I don't romanticize war. The worst moments of my life have come as a SEAL. But I can stand before God with a clear conscience about doing my job.
Don't think. Thinking is the enemy of creativity. It's self-conscious, and anything self-conscious is lousy. You can't try to do things. You simply must do things.
In the animal kingdom, one of the keys to survival is to outwit your enemies. And when you're surrounded by carnivores, one of the best strategies is to fade into the background and disappear.
As an immigrant, I appreciate, far more than the average American, the liberties we have in this country. Silence is a big enemy of morality. I don't want our blunders in history to get repeated.
The essence of optimism is that it takes no account of the present, but it is a source of inspiration, of vitality and hope where others have resigned; it enables a man to hold his head high, to claim the future for himself and not to abandon it to his enemy.