Opinion is the medium between knowledge and ignorance.

The greater our knowledge increases the more our ignorance unfolds.

Where there is no vision, there is no hope.

Be not simply good - be good for something.

Knowledge is power. Information is power. The secreting or hoarding of knowledge or information may be an act of tyranny camouflaged as humility.

Gratitude is the fairest blossom which springs from the soul.

The true method of knowledge is experiment.

Give light and people will find the way.

Human behavior flows from three main sources: desire, emotion, and knowledge.

Every addition to true knowledge is an addition to human power.