Full Idea
The classical liberals agreed on a basic list of freedoms: of opinion (including religion), of private life, of expression, and of property
Gist of Idea
Classical liberalism seeks freedom of opinion, of private life, of expression, and of property
Source
Micklethwait,J/Wooldridge,A (The Fourth Revolution [2014], 9)
Book Reference
Micklethwait/Wooldridge: 'The Fourth Revolution' [Penguin 2014], p.224
A Reaction
Mill is main articulator of this. Modern neo-liberals focus on economic freedom. Neither of them seem to make freedom of opportunity central, though I suspect our modern Liberal Party would.