When I was young I was sure of everything; in a few years, having been mistaken a thousand times, I read more

When I was young I was sure of everything; in a few years, having been mistaken a thousand times, I was not half so sure of most things as I was before; at present, I am hardly sure of anything but what God has revealed to me.

If we insist on being as sure as is conceivable... we must be content to creep along the ground, and read more

If we insist on being as sure as is conceivable... we must be content to creep along the ground, and can never soar.

In these matters the only certainty is that there is nothing certain.

In these matters the only certainty is that there is nothing certain.

Uncertainty and mystery are energies of life. Don't let them scare you unduly, for they keep boredom at bay and read more

Uncertainty and mystery are energies of life. Don't let them scare you unduly, for they keep boredom at bay and spark creativity.

For my part I know nothing with any certainty, but the sight of the stars makes me dream.

For my part I know nothing with any certainty, but the sight of the stars makes me dream.

To be positive: to be mistaken at the top of one's voice.

To be positive: to be mistaken at the top of one's voice.

Knowledge is an unending adventure at the edge of uncertainty.

Knowledge is an unending adventure at the edge of uncertainty.

Ah, what a dusty answer gets the soul when hot for certainties in this our life!

Ah, what a dusty answer gets the soul when hot for certainties in this our life!

All human things hang on a slender thread, the strongest fall
with a sudden crash.
[Lat., Omnia sunt read more

All human things hang on a slender thread, the strongest fall
with a sudden crash.
[Lat., Omnia sunt hominum tenui pendentia filo:
Et subito casu, quae valuere, ruunt.]