Trust me, but look to thyself. This Irish proverb instructs that while you should trust others, you should first trust yourself and your instincts. Lost Love All is fair in love and war. When it comes to love and war, apparently nothing is out of bounds. If someone does something terrible, it is more justified and potentially forgivable if it was done in the name of love or while at war. Versions of this proverb are found in many other languages.