Quests.

Mankind's appetite for knowledge knows no limits. Unfortunately, neither does its appetite for conquering.

The quest for knowledge brought medicines.
The quest for conquering brought deceases.
The quest for knowledge gave men the ability to fly.
The quest for conquering took away men's right to live.
The quest for knowledge sent men to the moon and back.
The quest for conquering sent men to kill others.

May the quest for knowledge reach the point where it says that men conquering men is an aberration.