What said Rudolf Diesel?

"Der Gebrauch von Pflanzenöl
als Kraftstoff mag heute unbedeutend sein.
Aber derartige Produkte können im Laufe
der Zeit ebenso wichtig werden wie Petroleum und
diese Kohle-Teer-Produkte von heute."

"The use of plant oil as fuel
may seem insignificant today. But such products
can in time become just as important as kerosene
and these coal-tar-products of today."

Rudolf Diesel in the year 1912
in his application for a patent; in a time, wher
energy crises, climate changes and ozone holes
not yet were discussed