Husserl came to see Heidegger as a rival to be destroyed philosophically

Evidence

Husserl, in the audience, was less ecstatic. He now feared the worst about Heidegger: he was no longer a protégé but a monstrous progeny. Shortly afterwards, he wrote to a colleague that he felt the need to reject Heidegger’s work completely. … Heidegger’s philosophy, Husserl decided, was of the kind that must be fought against at all costs. It was the sort of philosophy that he felt obliged to try to stamp out, and ‘render impossible forever’. — Sarah Bakewell, At the Existentialist Café, 250

Categorization

• XREF: Contrasts with Cassirer’s respectful intellectual opposition at Davos — shows the phenomenology/existentialism split dramatically. — connects to: Husserl backed Heidegger’s career hoping to restore ideological loyalty but lost the succession — Sarah Bakewell, At the Existentialist Café: Freedom,…, 225; Husserl recognized Being and Time as partly directed against his own philosophy — Sarah Bakewell, At the Existentialist Café: Freedom,…, 223; Husserl attacked Heidegger as remaining in the natural attitude — Sarah Bakewell, At the Existentialist Café: Freedom,…, 229 (+3 more)

Broader Connections

• Husserl came to regard Heidegger’s philosophy as a dangerous betrayal. #corroborates (0.95) — Sarah Bakewell, At the Existentialist Café, 250
• Adorno chose Husserl over Heidegger precisely because successors built on the fragile foundation #expands (0.75) — Rolf Wiggershaus, The Frankfurt School, 2267