Learning continuously is the best way to build one's intellectual capacity.

Intellectual capacity will certainly grow if one learns continuously.

Concerning mistakes, follow three simple rules. Firstly, correct a mistake that you made whenever it is possible. Secondly, don't repeat the same mistakes. Thirdly, learn from past mistakes.

The next presumption is always valid: one's knowledge corresponds to
one's intellectual capacity.

Acquiring knowledge is the most fruitful effort.

Learn always and wherever possible, knowing that you'll never learn everything.