Enough time (Barnes)

But time...how time first grounds us and then confounds us. We thought we were being mature when we were only being safe. We imagined we were being responsible but were only being cowardly. What we called realism turned out to be a way of avoiding things rather than facing them. Time...give us enough time and our best-supported decisions will seem wobbly, our certainties whimsical.

Julian Barnes, The Sense of an Ending