In a large mass of muscle deprived of its circulation, the rate at which the recovery process can go on, after severe stimulation, depends on the rate at which oxygen can reach the fibres by diffusion.

One knows that after violent exercise one breathes heavily for some time: the more violent the exercise, the longer one's respiration is laboured.

Muscles do not use oxygen at a constant rate.

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.

After a tough match, I'll do an ice bath, and that's really good for recovery because it helps circulation. Sometimes you feel really swollen.

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.