Life has taught us that we need to combine extremes.

• Love people, but be indifferent.
• Do good and expect evil.
• Hope for the best, but expect the worst.
• Believe in people and don't trust anyone.
• Be an optimist with realistic views.
• Live with an open heart and don’t let anyone in.

Part of you must love and admire this world. And the other is to wait for the blow and be ready for war.