Sometimes I think and sometimes I am
           P. Valéry

Perfer et obdura: dolor hic tibi proderit olim   

The real trouble with this world of ours is not that it is an unreasonable world, nor even that it is a reasonable one. The commonest kind of trouble is that it is nearly reasonable, but no quite. Life is not an illogicality; yet it is a trap for logicians. It looks just a little more mathematical and regular than it is; its exactitude is obvious, but its inexactitude is hidden; its wildness lies in wait
           G. K. Chesterton