Later I realized that the mission had to end in a let-down because the real barrier wasn't in the sky but in our knowledge and experience of supersonic flight.

Books minister to our knowledge to our guidance and to our delight by their truth their uprightness and their art.

With all the knowledge and skill acquired in thousands of flights in the last ten years I would hardly think today of making my first flight on a strange machine in a twenty-seven mile wind even if I knew that the machine had already been flown and was safe.

There is no knowledge no light no wisdom that you are in possession of but what you have received it from some source.

One of the greatest joys known to man is to take a flight into ignorance in search of knowledge.

And I pray thee loving Jesus that as Thou hast graciously given me to drink in with delight the words of Thy knowledge so Thou wouldst mercifully grant me to attain one day to Thee the fountain of all wisdom and to appear forever before Thy face.

Zeal without knowledge is fire without light.

If you have knowledge let others light their candles in it.

No jealousy their dawn of love overcast nor blasted were their wedded days with strife each season looked delightful as it past to the fond husband and the faithful wife.

There is a sort of jealousy which needs very little fire it is hardly a passion but a blight bred in the cloudy damp despondency of uneasy egoism.