The phrase "always be mindful" is correct and usable in written English.
You can use it to remind someone to maintain awareness or consideration in various situations.
Example: "In our fast-paced work environment, it's essential to always be mindful of our colleagues' feelings and perspectives."
Alternatives: "constantly be aware" or "remain attentive".
And it must always be mindful of public-service values.
We should always be mindful of the higher purpose of what we're — what we're doing and — and why".
And she must always be mindful of the German constitutional court, which plays a very strong role in interpreting treaties like those that bind Germany to the E.U.
Politicians, professionals and the media should always be mindful that when they buy into, and re-enforce, stereotypes they contribute to a culture of disbelief and silence.
We need to always be mindful of what audiences might infer from emails or other communications, even if that isn't what we intended".
The BBC as the dominant partner must always be mindful of the effect of its activities on regional media groups and their ability to turn a profit".
As for Ms. Orlanska, she said she has always been mindful of sleep.
They always were mindful of the segregationist indignities, but Reed wanted me to know that his childhood had been happy.
The Bolsheviks had always been mindful of minorities on their frontiers, and the first deportation of non-Russian minorities to Siberia and Central Asia began in the 1920s.
Élite schools, like any luxury brand, are an aesthetic experience — an exquisitely constructed fantasy of what it means to belong to an élite — and they have always been mindful of what must be done to maintain that experience.
"I never cared to put up personal stuff, like, oh, 'I'm going to the bathroom now,' or 'Here is what I'm eating.' " This wasn't just a matter of resisting the banalities of social media: Alameddine had always been mindful of the dividing line between personal edification and public consumption.
