And don't forget to harden your knees!
Improvements in Clothing - 1924 Primer of Hygiene
"CLOTHING protects the body from injury and shields it from heat and cold and from sun and rain. Our personal appearance depends to a great extent upon the clothing that we wear, but we should not forget that its purpose is to protect the body - that if our clothing is uncomfortable and unsuited to the weather it will not serve its real use."
