I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led.

I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led, and bearding every authority which stood in their way.

He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors

A loving heart is the beginning of all knowledge.

...avoidance of small mistakes makes the large ones more severe.

One man with courage is a majority.