The phrase "a firm lesson" is correct and usable in written English.
It can be used when referring to a lesson that is taught with strictness or seriousness, often to emphasize the importance of the lesson learned.
Example: "After failing to meet the deadline, the manager gave the team a firm lesson on the importance of time management."
Alternatives: "a stern lesson" or "a tough lesson".
For if there is any firm lesson to be drawn from six years of Cameron, at the risk of sounding Etonist, it is to never vote Etonian.
Both struck a deep chord in me because you and I share a set of basic values: ethical universalism and a firm belief that the lesson of Jewish history and Jewish suffering is that only an uncompromising defense of human rights for everybody, anywhere, can prevent the type of horrors that the Jewish people went through.
It was organised by BrightSpark, a firm which sells online lessons from Mr Kumar and his Indian colleagues to clients in Britain at a cost of £12 ($19) an hour".You have to see it to believe it," says Ms Hanson, recalling children squabbling for a turn solving sums online.
But for the most part he was a firm advocate of globalisation.The other lesson from Mr Tata has to do with integrity.
Lesson one: a firm with some leverage will lower its total cost of capital when interest rates are falling.
A firm's ability to extract lessons from both successes and failures and generate new insights is conducive to performance (Senge 1990; Wang 2008).
It is clear this pontiff needs no lessons in retaining a firm purchase along that unsteady tightrope between the hard, 'bread and butter' issues of his hungrier flock and our older archaeology of ancient lore which traverses the ages of an earlier, ostensibly pie-in-the-sky religiosity, long-abandoned in so-called 'developed' nations.
In studying the five venture capital firms, lessons are drawn with respect to considerations for designing African venture funds to support science-based health innovation.
In a statement, Robert Khuzami, head of the SEC's enforcement division, said that the settlement, which must be approved by a judge, was "a stark lesson to Wall Street firms that no product is too complex, and no investor too sophisticated, to avoid a heavy price if a firm violates the fundamental principles of honest treatment and fair dealing".
