The pursuit of natural knowledge, the investigation of the world - mental and material - in which we live, is not a dull and spiritless affair: rather is it a voyage of adventure of the human mind, a holiday for reckless and imaginative souls.
Perhaps the spirit of adventure, be it mental or material adventure, is a factor so essential in human progress that no emphasis of it is undue.
Kindliness and sympathy, fellowship and understanding, are always good, but best when they come from a distant corner of the world.
One knows that after violent exercise one breathes heavily for some time: the more violent the exercise, the longer one's respiration is laboured.
The fundamental difficulty in myothermic observations is the smallness of the changes involved and their rapidity.