Jayce and Heimerdinger in “Unfinished Business”

Jayce

Surely, we, the pioneers of science, can use it for good. We are the champions of discovery. Why fear it when we can master it?

Heimerdinger

Jayce, enough.

Jayce

This is the city of progress. Think of the wonders we could create! Let me prove—

Heimerdinger

Enough! You don't understand what's at stake. But how can you? That's a burden that only I here carry: time. I have seen this power in the wrong hands. It corrupts, consumes, lays waste to civilizations. That cannot happen here, my boy. It must not.