He fought his battles gently-shying away from the adversarial style he experienced as a student at Cambridge-but with rigorous precision and an unfailing sense of social justice.
These were very early abacuses, which developed around 4,000 years ago into the more traditional style of beads threaded onto rods and set into a frame.
But as you dive into your work, you're gonna discover other strategies that might be even more effective, or you'll make tweaks that suit your style of working better than anything we could come up with.
“Magic always leaves traces, ” said Dumbledore, as the boat hit the bank with a gentle bump, “sometimes very distinctive traces. I taught Tom Riddle. I know his style.”