Read the following passage and answer the question that follows. Your answer should be based on the passage only.

A capable administrator, like anyone else who wishes to improve, learns more from critics than from admirers. Admirers will often cheer him toward mistakes he cannot see, while critics, however unwelcome, point to the very risks he must guard against. So a wise administrator does not wish away every critic, however much they trouble him, for they alone keep him honest and attentive. The stability of any government depends on power being kept in reasonable balance, so that no single authority is able to act arbitrarily and no critic is able to act with purely destructive intent.

With reference to the above passage, the following assumptions have been made:

1. A strong critical voice is required only if the administrator is indifferent to feedback.

2. The more aggressive the critics, the better the governance.

Which of the above assumptions is/are valid?