Gradually, the researcher became a stricter observer.
The Chabad Lubavitch movement has distinguished itself from other Hasidic groups in its focus on outreach to all Jews, in particular those who are not strict observers of Jewish law.
In the words of one Muslim from the Niujie (Ox Street) community in south-west Beijing, the rhythm of modern life in China means 'there are are fewer and fewer strict observers of Ramadan".
For decades, I was a strict Sabbath observer.
While some, such as Kolo Touré (pictured), an Ivory Coast defender, are strict observers, others, like Marouane Chamakh, a forward for Morocco (which did not qualify), fast on most days but not on the eve of a game or on matchday itself.
The Observer's literary editor, William Skidelsky, said that it would be "unduly rigid" to attempt to enforce "a strict 50/50 division of genders on the Observer's books pages", but added that he does "try to ensure each week that there is a decent male-female spread in terms both of the authors we cover and the people we get to review them".
While US labour law has a strict set of standards governing the practice of unpaid internships, many observers and former interns say that the Department of Labor has not done a good job of ensuring those standards are enforced.
There is a strict code of confidentiality.
Writing in the British newspaper The Observer in July, Peter Beaumont noted that Qatar's "huge ambitions to spread influence around the globe were fueled by enormous wealth and devotion to a strict interpretation of the Koran".
There's a strict process of approval.
