expand my horizons

[dervast]

Is this a valid english phrase? I want to use for educational purposes

"During my undergraduate studies in the Department of Informatics (Technological Educational Institutions of Athens) I have tried to expand my horizons as much as I could"

[Tdol]

It's Ok, and 'broaden your horizons' can also be used.

[Searching for language]

It's a good and valid phrase, meaning that you don't want to stick to what you have been doing for a long time. For example, after I turned 60, I started to learn French, to "broaden my horizon". And, I am going to Paris soon to practice it a bit.

[dervast]

Originally Posted by Searching for language

meaning that you don't want to stick to what you have been doing for a long time.

So perhaps it has a negative meaning for education purposes. Someone reading my text can assume that i was a lazy student in the past.

[Searching for language]

Not at all. If you have been studying languages, and worked very hard, and then decide that you would also like to study mathematics, you are broadening your horizons. You are doing something different.