There is no royal road ––– learning. Fill in the blank-

The correct preposition to fill in the blank is "to." The complete proverb is:

"There is no royal road to learning."

This proverb suggests that there are no shortcuts or easy paths to acquiring knowledge or expertise. Learning requires effort, dedication, and hard work rather than expecting a quick and effortless route, like a "royal road."

Royal road to something অর্থ ‘কোনো কিছু পাওয়ার সহজতম পথ’। সুতরাং শূন্যস্থানে ‘to’ বসবে।