Two graduates from the Massachusetts Institute of Technology have published an op-ed grilling their alma mater over recent decisions that are “damaging” the university.

Tom Hafer and Henry I. Miller wrote Friday that MIT helped them learn both problem-solving and academic skills, saying they have previously donated to the school out of gratitude. However, their appreciation dried up after the prestigious institution canceled a lecture after the professor advocated for merit-based admissions, according to their op-ed in City Journal.