...[S]ome of the opinions which people entertain should be respected, and others should not.

I desire only to know the truth, and to live as well as I can...And, to the utmost of my power, I exhort all other men to do the same...I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.

We too must endure and persevere in the inquiry, and then courage will not laugh at our faintheartedness in searching for courage; which after all may, very likely, be endurance.

It is better to make a mistake with full force of your being than to carefully avoid mistakes with a trembling spirit.