In February 1952, our first son Hsien Loong was born. She took maternity leave for a year.

That February, I was asked by John Laycock, the Senior Partner, to take up the case of the Postal and Telecommunications Uniformed Staff Union, the postmen's union.

They were negotiating with the government for better terms and conditions of service. Negotiations were deadlocked and they decided to go on strike.

It was a battle for public support. I was able to put across the reasonableness of their case through the press and radio. After a fortnight, they won concessions from the government.

Choo, who was at home on maternity leave, pencilled through my draft statements, making them simple and clear.

Over the years, she influenced my writing style. Now I write in short sentences, in the active voice. We gradually influenced each other's ways and habits as we adjusted and accommodated each other.

We knew that we could not stay starry-eyed lovers all our lives; that life was an on-going challenge with new problems to resolve and manage.

We had two more children, Wei Ling in 1955 and Hsien Yang in 1957. She brought them up to be well-behaved, polite, considerate and never to throw their weight as the prime minister's children.

As a lawyer, she earned enough, to free me from worries about the future of our children.

She saw the price I paid for not having mastered Mandarin when I was young. We decided to send all three children to Chinese kindergarten and schools.

She made sure they learned English and Malay well at home. Her nurturing has equipped them for life in a multi-lingual region.

We never argued over the upbringing of our children, nor over financial matters. Our earnings and assets were jointly held. We were each other's confidant. She had simple pleasures. We would walk around the Istana gardens in the evening, and I hit golf balls to relax.

Later, when we had grandchildren, she would take them to feed the fish and the swans in the Istana ponds.

Then we would swim. She was interested in her surroundings, for instance, that many bird varieties were pushed out by mynahs and crows eating up the insects and vegetation.

She discovered the curator of the gardens had cleared wild grasses and swing fogged for mosquitoes, killing off insects they fed on.

She stopped this and the bird varieties returned. She surrounded the swimming pool with free flowering scented flowers and derived great pleasure smelling them as she swam.

She knew each flower by its popular and botanical names. She had an enormous capacity for words.

She had majored in English literature at Raffles College and was a voracious reader, from Jane Austen to JRR Tolkien, from Thucydides' "The Peloponnesian Wars" to Virgil's "Aeneid", to "The Oxford Companion to Food, and Seafood of Southeast Asia", to "Roadside Trees of Malaya", and Birds of Singapore".