Likutei Moharan 75:1/ליקוטי מוהר"ן ע״ה:א׳

1“Yevarekheinu Elohim (May God Bless Us); and let the fear of Him [be unto] all the ends of the earth.”

2Where there is the trait of NiTZaChon (having to always win), [there is] also conflict and strife. What is the origin of this trait? It stems from the blood with which one has not yet served God, as it is written, “and their NiTZCham (vital force) splashed,” which Rashi explains as “blood.”