I don't know very many Buddhist quotes. I'm just beginning to learn about buddhism in earnest. But a religious studies class I took a while back had one story that I loved, and have taken to heart since.
Super paraphrased, and but I'm going for spirit of the message here.
Two monks were walking down a path one day, and came across a bridge that had fallen. A woman stood at the banks of the stream, and asked the monks to carry her across, because she could not swim. The younger monk immediately said no, as the monks were forbidden from touching a woman. The older man agreed, and carried the woman across the water, and the two monks went on their way. The younger monk stewed over this, becoming more and more upset about, until finally that night, as they went to rest, the younger monk exploded, "Why did you touch that woman? You know we are forbidden to touch a woman! You have broken you vow!"
And the older monk replied "I carried the woman for a moment. You have carried her all day."