Theories Are Plants (w.r.t. Life Cycle)

From: Theories Are Beings With Life Cycles

-- 1 This theory is withering on the vine.

-- 2 This theory is still productive.

-- 3 This theory is past the time when it can bear fruit for us.

-- 4 The theory grew out of their earlier work.

-- 5 The theory was a natural outgrowth of their work.

-- 6 Many theories sprang up out of the fertile soil of his discoveries.

-- 7 The theory was nourished by later experimental results.