The phrase "all the principles" is correct and usable in written English.
You can use it when referring to a complete set of fundamental truths or rules that guide behavior or reasoning in a particular context.
Example: "In order to understand the theory fully, one must consider all the principles that underpin it."
Alternatives: "all the rules" or "every principle".
"And what they did was contrary to all the principles the Co-op had in the past".
This flag was seen to embody all the principles of the Revolution liberty, equality, fraternity, democracy, secularism, and modernization.
For us, everything was in place, all the principles, we just made a few errors early on.
Then all of a sudden with the success and all that money coming in, all the principles that had been engineered upfront were thrown out the window".
Speaking after talks with the French minister, Dominique de Villepin, he said, "We will respect all the principles the Palestinian people support".
If anything, it contained all the principles (values?) most sane people wish to see in society: humour, tolerance, common sense, compassion, candour, honesty, clear-sightedness.
In fact, that is precisely wrong – in that speech is contained all the principles the right needs us to accept to win the next election.
The research found that principles of multimedia learning are valid from the students' perspective however the instructors did not uphold all the principles.
After all, the principles of benefit-cost analysis do not say to exclude a specific kind of benefit or cost simply because it might be relatively small.
He was born in 1824, he knew Schumann and Mendelssohn, and he was known for the way he played Mozart, which would violate all the principles we are taught today.
Le père, in his conception, stands for all the principles that a nation needs to thrive stoicism, sacrifice, delayed gratification—"The father embodies the law and the principle of reality in opposition to the principle of pleasure".
