Conversation so far:
What did Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, do as a member of Parliament?
Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, opposed secular education and ultramontane interference with the Church of England which was at variance with the fundamental principles of our constitution.
What did Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, say after saying he opposed secular education and ultramontane interference with the Church of England?
Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, would oppose any such tampering with our representative system as shall disturb the reciprocal powers on which the stability of our constitution rests.

Question: Did he do anything notable while in Parliament?
Self-contained rewrite: Did Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, do anything notable while in Parliament?