born, borne, bourn, bourne

Born or born is a participle ( used with a helper verb ) of "bear", meaning to give birth, often used to describe the birth of someone, or the conditions or place of birth--
He was born in New York, but he lives in California now.
Some people believe that we are born with talents, other people believe that we learn everything.

Borne or borne ( rhymes with born ) is a participle ( used with a helper verb ) of "bear" meaning endure or put up with; to carry, usually as a load or burden--
The old man has borne too much suffering; he may never get well.
This outrage is not to be borne!

Bourne or bourne, ( sometimes spelled bourn, rhymes with born ) is an old-fashioned word for a bound or limit, sometimes used to mean an end or goal--
We can rest when we reach the bourne; there's a cottage nearby.
He was fired by ambition, with fame the bourne.

Now that you know that, you can say--
"He was born at the beginning of the century, and he had borne much hardship before he reached the bourne of retirement age."

Note--"borne" may also mean a type of circular sofa with a cushioned cone or cylinder in the center--
They sat on opposite sides of a red velevet borne, ignoring one another.