He wrote for more than 50 years, from 1896 until 1946.
Jim and I have been writing for six years together.
Now age 50, he has been writing for more than 20 years.
He must have written several pages a day for more than two years.
At that time he cut himself off from his previous political activities and gave up writing for many years.
The two would continue writing each other for more than fifteen years.
He began it then, and quietly kept on writing for 40 years.
After its poor commercial reception he did not write anything for two years.
He wrote to her for five years before she agreed to kiss him.
"I stopped writing for many years," he said, and was 28 or 29 before be picked it up again.