“I truly miss my youth but embrace the more mature man I've become. Living in Palm Springs, I am a spring chicken! So it's all relative.”
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George Maloof, entrepreneur and casino owner DJ AM DEATH LEAVES CLUB BOSS DEVASTATED http://www.younghollywood.com/news/2009/08/30/dj-am-death-leaves-club-boss-devastated.html

“In Spring all trees become pregnant”
Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book II, Chapter IX "Timber" Sec. 1
Context: In Spring all trees become pregnant, and they are all employing their natural vigor in the production of leaves and of the fruits that return every year. The requirements of that season render them empty and swollen, and so they are weak and feeble because of their looseness of texture. This is also the case with women who have conceived. Their bodies are not considered perfectly healthy until the child is born.

Former model recalls days filming underwater http://www.ocala.com/news/20131106/former-model-recalls-days-filming-underwater (November 6, 2013)

“I live in that solitude which is painful in youth, but delicious in the years of maturity.”
"Self-Portrait" (1936), p. 5 http://books.google.com/books?id=Q1UxYzuI2oQC&lpg=PP1&pg=PA5#v=onepage&q&f=false
1950s, Out of My Later Years (1950)
Variant: I live in that solitude which is painful in youth, but delicious in the years of maturity.