July 30, 2021September 7, 2020 by geoff “Self-preservation is the central aim of all life-activities.” – Boris Sidis Self-preservation is the central aim of all life-activities. - Boris Sidis Click to Tweet Pin this Image Pin Help us to share this great article. Your friends will appreciate it! 2shares Facebook0 Twitter0 Pinterest0 LinkedIn2 Flipboard Tumblr0 Mix