Peter Rosenthal had a huge impact on my life. He taught mathematics not by showing us proofs, but by leading us through the process of discovering them for ourselves – and by doing that he led me to a rediscovered confidence in my own ability. His principled political stands were always focused on defending the abused, and often involved painful issues; but despite the seriousness of his work, the twinkle in his eye and wicked smile remind us always that life, even in struggle, can be fun.
Source: Peter Rosenthal – Steeles Memorial Chapel
See also:This G&M Obituary and This earlier profile in Toronto Life