The important difference between liberals and conservatives is that liberalism requires constant reaction and a perpetual sales pitch (steeped in dishonesty), while conservatism is the "default" state of normality and does not need the constant attention or endless noise.
The secondary difference is that liberals must constantly run from its label and its constant failures, while conservatives have no such need to be so engaged in order to placidly live with themselves and their core beliefs, knowing conservatism is a winning idea each and every time it is applied.