the threshold of real knowledge. In this mood of mind I betook myself to the mathematics and the branches of study appertaining to that science as being built upon secure foundations, and so worthy of my consideration.

Thus strangely are our souls constructed, and by such slight ligaments are we bound to prosperity or ruin. When I look back, it seems to me as if this almost miraculous change of inclination and will was the immediate suggestion of the guardian angel of my life — the last effort made by the spirit of preservation to avert the storm that was even then hanging in the stars and ready to envelop me. Her victory was announced by an unusual tranquillity and gladness of soul which followed the relinquishing of my ancient and latterly tormenting studies. It was thus that I was to be taught to associate evil