Many internet sites assert this quote is in the Quran, "Don’t tell me how educated you are, tell me how much you have travelled", but none I've found provides a specific citation. Can you tell me if it is, in fact, from the Quran, and where specifically I can find it?
Salam alayk wa rahmatu-Allah wa barakatuhu
In the name of Allah, Most Beneficent, Most Merciful
Dear questioner, you have made a worrying comment that many internet sites assert that this quotation is in the Qur'an. It is in fact not to be found in the Qur'an.
Allah has blessed us with people of knowledge - scholars of Islam - from whom knowledge must be sought. The internet (Sheikh Google, more specifically) is not the best place to learn matters of 'Aqeedah and Fiqh. This is not to say that the internet does not hold troves of good and true Islamic knowledge, but one must be circumspect.
This quote you have quoted does not appear in the Qur'an. Perhaps, it may be a reference to the entire story of Musa (AS) and Khidr (AS) found in Suratul Kahf (Surah 18). But even then, this statement in no way summarises the story enough, as the knowledge of Khidr has nothing to do with mere travel experience.
And Allah knows best.
Salam alayk. I hope this helps.