Happiness is a pause between 2 moments of suffering.
I assume this sentence is intended to elicit a sense of despair by marginalizing happiness as the temporary lack of suffering. However, it fails on several counts.
If my assumption is correct, our philosopher presumably believes that there exists more than two moments of suffering. Therefore, suffering is equivalently a moment between two pauses of happiness. In other words, our philosopher's insight is little more than trite pessimism of the glass-half-empty variety. In fact, it is actually a weaker pessimistic observation than the half-empty glass, since a moment implies a briefer period of time than a pause.
Consider yourself owned, bathroom philosopher. Now back to this proposal I'm supposed to be working on.