As frost, raised to its utmost intensity, produces the sensation of fire, so any good quality, overwrought and pushed to excess, turns into its own contrary.

The difficulties, hardships and trials of life, the obstacles... are positive blessings. They knit the muscles more firmly, and teach self-reliance.

The same disappointments in life will chasten and refine one man's spirit, embitter another's.

Be methodical if you would succeed in business, or in anything. Have a work for every moment, and mind the moment's work.

The smallest thing, well done, becomes artistic.

One well-cultivated talent, deepened and enlarged, is worth one hundred shallow faculties.

Unless a man has trained himself for his chance, the chance will only make him ridiculous.

The petty cares, the minute anxieties, the infinite littles which go to make up the sum of human experience, like the invisible granules of powder, give the last and highest polish to a character.

Criminals are opportunists. If you've got a booming market, they're going to get away with more fraud.

The power of music that poetry lacks is the ability to persuade without argument.

The easiest way for me to lose interests is to know too much of what I want to say before I begin.

When someone blushes, doesn't that mean 'yes'?

There's only one trick in software, and that is using a piece of software that's already been written.

Compassion is a Shepherd, Always tending his herd.

Love for the Lord, love for His servants the missionaries. Missionary work is a work of love and trust, and it has to be done on that basis.

A creative mess is better than idle tidiness.

I am still learning. (at age 87)

A flat black bug, that is London.

Trust has two dimensions: competence and integrity. We will forgive mistakes of competence. Mistakes of integrity are harder to overcome.

If there are four equations and only three variables, and no one of the equations is derivable from the others by algebraic manipulation then there is another variable missing.