According to the Scriptures

And the things that thou hast heard of me among many witnesses,

the same commit thou to faithful men,

who shall be able to teach others also.

- 2nd Timothy 2:2

Grow at your own pace

1st Peter 2:2

As newborn babes, desire the sincere milk of the word, that ye may grow thereby:

Hebrews 5:14

But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.