We cannot and must not get rid of nor deny our characteristics. But we can give them shape and direction.

Theories are usually the over-hasty efforts of an impatient understanding that would gladly be rid of phenomena, and so puts in their place pictures, notions, nay, often mere words.

We must not take the faults of our youth with us into old age, for age brings along its own defects.

Wisdom is found only in truth.

It makes no good to point the failures out without showing at the same time the remedy to address them.

The little that is completed, vanishes from the sight of one who looks forward to what is still to do.

Lamps make oil-spots and candles need snuffing; it is only the light of heaven that shines pure and leaves no stain.